Part A: Sydney made $18. 50 selling lemonade, by the cup, at her yard sale. She sold each cup for $0. 50 and received a $3 tip from a neighbor. Write an equation to represent this situation. (4 points) Part B: Daria made a profit of $21. 00 selling lemonade. She sold her lemonade for $0. 75 per cup, received a tip of $3 from a neighbor, but also had to buy each plastic cup she used for $0. 10 per cup. Write an equation to represent this situation. (4 points) Part C: Explain how the equations from Part A and Part B differ. (2 points

Answers

Answer 1

a) equation will be 0.5x + 3 = 18.50

b)  equation will be (0.75x - 0.10x) + 3 = 21.00

a) Sydney made $18.50 selling lemonade.

she sold each cup for $0.50 and received a $3 tip from a neighbor.

let x be the cost of cup she sold.

equation will be 0.5x + 3 = 18.50

b) Daria made a profit of $21.00 selling lemonade

she sold her lemonade for $0.75 per cup, received a tip of $3 from a neighbor.

equation will be (0.75x - 0.10x) + 3 = 21.00

c) Sydney don't have to pay for the cups used while Daria paid.

Learn more about this concept here:

brainly.com/question/2573476

#SPJ4

Answer 2

A. An equation to represent the situation in part A is 18.50 = (0.50) x + 3.

B. An equation to represent the situation in part B is 21.00 = (0.75) y - (0.10) y + 3.

C. The equations differ in the fact that one accounts for the cost per cup while the other does not.

What is profit?

In general, the profit is defined as the amount gained by selling a product, which should be more than the cost price of the product.

Part A: Let x be the number of cups of lemonade sold.

Then, the total amount of money Sydney made is given by:

Total money = (selling price per cup) × (number of cups sold) + tip

Substituting the given values, we get:

18.50 = (0.50) x + 3

Part B: Let y be the number of cups of lemonade sold.

Then, the total profit made by Daria is given by:

Total profit = (selling price per cup) × (number of cups sold) + tip - (cost per cup) × (number of cups sold)

Substituting the given values, we get:

21.00 = (0.75) y - (0.10) y + 3

Part C: The equation for Sydney's lemonade stand only takes into account the total amount of money she made, which includes the selling price per cup and a fixed tip.

On the other hand, the equation for Daria's lemonade stand takes into account both the total profit made (which includes the selling price per cup and a fixed tip) and the cost per cup of lemonade sold. So, the equations differ in the fact that one accounts for the cost per cup while the other does not.

Learn more about profit on:

https://brainly.com/question/1078746

#SPJ4

Complete question is

Part A : Sydney made $18.50 selling lemonade, by the cup, at her yard sale. She sold each cup for $0.50 and received a $3 tip from a neighbour. Write an equation to represent this situation.

Part B : Daria made a profit of $21.00 selling lemonade. She sold her lemonade for $0.75 per cup, received a tip of $3 from a neighbour, but also had to buy each plastic cup she used for $0.10 per cup. Write an equation to represent this situation.

Part C: Explain how the equation from part A and part B differ.


Related Questions

Pythagorean Theorem answer quick please

Answers

Answer:

3.9

Step-by-step explanation:

pythagorean theorem states:

[tex]a^{2} +b^{2} =c^{2}[/tex]

We know that a is the height of the triangle, 2.

We also know that b is the base of the triangle, 3.

So, solve for c:

2²+3²=c²

simplify

4+9=c²

15=c²

take the square root of both sides

c=3.9

So, the spider and the fly are 3.9 ft apart from each other

Hope this helps :)

Answer:

3.6 feet

Step-by-step explanation:

The Pythagorean theorem states that a^2+b^2=c^2, where c is the hypotenuse, or longest side of the triangle opposite to the right angle, and a and b are the two legs of the triangle (the other two sides.)

In the question, sides a and b are given as 2ft and 3ft long. Plugging 2 and 3 into the equation, we will get that 2^2+3^2=c^2. 2 x 2 = 4 and 3 x 3 = 9, so 4 + 9 = c^2, or, c^2 = 13.

However, this is still c^2, not c, so we must take the square root of both sides. This is because the equation is now essentially saying that c x c = 13, so if we find a number that when multiplied by itself equals 13, that number will be c. to do this, we must take the square root of 13. This will give us an irrational number- approximately 3.605551275. The question asks to round it to the nearest tenth though, so this will simply become 3.6.

In the context of this question, it means that the spider and the fly are 3.6ft apart.

PLEASE ANSWER QUICKLY FOR THE LOVE OF EVERYTHING

Mrs. Robinson surveyed her class about what flavor cake and ice cream they wanted for their class party. The results were split evenly between the cake with 15 choosing chocolate cake and 15 choosing yellow cake. Of the students who chose chocolate cake, 12 also chose vanilla ice cream. There were 7 students in all that chose strawberry ice cream. Construct a two -way table summarizing the data​

Answers

The two-way table is of the class survey is:
                         Vanilla Ice Cream  |  Strawberry Ice Cream  |  Total
Chocolate Cake      |          12                   |             3                        |     15
Yellow Cake           |          11                   |             4                        |     15
Total                     |          23                   |             7                        |     30

A two-way table summarizing the data from Mrs. Robinson's class survey on cake and ice cream preferences can be constructed as follows.

1: Create a table with rows for Chocolate Cake and Yellow Cake, and columns for Vanilla Ice Cream, Strawberry Ice Cream, and Total.

2: Fill in the given information:

15 students chose Chocolate Cake and 15 students chose Yellow Cake, so put 15 in the Total column for both rows.12 students who chose Chocolate Cake also chose Vanilla Ice Cream, so put 12 in the intersection of Chocolate Cake and Vanilla Ice Cream.There were 7 students in all that chose Strawberry Ice Cream, so put 7 in the Total row of the Strawberry Ice Cream column.

3: Complete the table using the given information:

Since 12 students who chose Chocolate Cake also chose Vanilla Ice Cream, 3 students chose Chocolate Cake and Strawberry Ice Cream (15 total - 12).There are 7 students in total who chose Strawberry Ice Cream, so 4 students chose Yellow Cake and Strawberry Ice Cream (7 total - 3).The remaining 11 students chose Yellow Cake and Vanilla Ice Cream (15 total - 4).

So, the completed two-way table is:
                         Vanilla Ice Cream  |  Strawberry Ice Cream  |  Total
Chocolate Cake      |          12                   |             3                        |     15
Yellow Cake           |          11                   |             4                        |     15
Total                     |          23                   |             7                        |     30

Learn more about Two-way table:

https://brainly.com/question/29257874

#SPJ11



Plot all of the existing five features of the following rational function (some may not
be needed). if you get a fraction or decimal then plot as close to the true location as
possible.
f(x)
5x + 20
x2
- - 20
plot rational function
vertical asymptote
horizontal asymptote
x-intercept y-intercept hole
click on a feature then drag it into place,
to
5
4
5
8
9 10

Answers

Answer:

Step-by-step explanation:

To plot the given rational function f(x) = (5x+20)/(x^2 - 20), we need to find the vertical asymptote, horizontal asymptote, x-intercepts, y-intercepts, and holes.

Vertical asymptote:

The denominator of the rational function cannot be zero. Therefore, we need to find the value of x when the denominator equals zero.

x^2 - 20 = 0

x^2 = 20

x = ±√20

The vertical asymptotes are x = √20 and x = -√20.

Horizontal asymptote:

To find the horizontal asymptote, we need to compare the degree of the numerator and denominator. The degree of the numerator is 1, and the degree of the denominator is 2. Therefore, the horizontal asymptote is

y = 0.

X-intercepts and y-intercept:

To find the x-intercepts, we need to set the numerator equal to zero.

5x + 20 = 0

x = -4

Therefore, the x-intercept is (-4,0).

To find the y-intercept, we need to set x equal to zero.

f(0) = (5(0) + 20) / (0^2 - 20)

f(0) = -1

Therefore, the y-intercept is (0,-1).

Hole:

We can factor the numerator and denominator of the rational function to find if there is a hole. Factoring 5x + 20, we get 5(x+4). Therefore, there is a hole at x = -4.

To summarize, the features of the rational function f(x) = (5x+20)/(x^2 - 20) are:

Vertical asymptotes at x = √20 and x = -√20

Horizontal asymptote at y = 0

X-intercept at (-4,0)

Y-intercept at (0,-1)

Hole at x = -4

To know more about  rational function refer here:

https://brainly.com/question/20850120#

#SPJ11

A table titled inequality symbols contains the symbols for less-than and greater-than.

Check all that are inequalities.

-3 = y

t > 0

-4. 3 < a

g = 5 and one-half

k less-than Negative Start Fraction 5 Over 7 End Fraction

x = 1

Answers

The inequalities in the given table are "t > 0" and "3 < a."

To identify the inequalities from the provided options, we need to understand the meaning of the symbols and check if they represent a comparison between two values.

-3 = y: This is not an inequality symbol but rather an equality symbol. It represents that -3 is equal to y, not greater or less than.

t > 0: This is an inequality symbol. The symbol ">" represents "greater than." Therefore, t is greater than 0.

-4. 3 < a: This is another inequality symbol. The symbol "<" represents "less than." Hence, 3 is less than a.

g = 5 and one-half: This is an equality symbol. The symbol "=" denotes equality, indicating that g is equal to 5 and one-half, not greater or less than.

k less-than Negative Start Fraction 5 Over 7 End Fraction: This is also an inequality symbol. The phrase "less than" indicates a comparison. The fraction "Negative Start Fraction 5 Over 7 End Fraction" represents -5/7. Therefore, k is less than -5/7.

x = 1: This is an equality symbol. The symbol "=" indicates that x is equal to 1, not greater or less than.

In summary, the inequalities in the table are "t > 0" and "3 < a."

To know more about inequalities , refer here :

https://brainly.com/question/30231190#

#SPJ11

How can you use rational expressions and equations to describe relationship and solve problems?

Answers

Rational expressions and equations can be used to describe relationships and solve problems that involve proportions or rates of change.

They involve expressions that are fractions of polynomials, where the numerator and denominator can be thought of as values that change according to some variable.

For example, rational expressions can be used to represent rates of change in physics or finance, such as the speed of an object or the interest rate on a loan. By setting up equations with rational expressions, we can solve for unknown values or relationships between variables.

Rational equations can also be used to describe relationships between quantities that are proportional, such as the volume of a container and the amount of liquid it can hold. By solving for an unknown variable in a rational equation, we can determine the relationship between the two quantities and use it to make predictions or solve practical problems.

To learn more about expressions click on,

https://brainly.com/question/30065589

#SPJ4

For what values of a and b will this equation have infinitely many solutions?

5(x + 3) = a(x + 4) + 3x + b

Answers

Answer: To have infinitely many solutions, the equation must be true for all values of x. In other words, the left side and right side of the equation must be equivalent, meaning that the coefficients of x on both sides of the equation must be equal, and the constant terms on both sides must be equal.

We can simplify the given equation as follows:

5(x + 3) = a(x + 4) + 3x + b

5x + 15 = ax + 4a + 3x + b

Simplifying further, we get:

8x + 4a + b = 5x + 15

Rearranging terms, we get:

3x + 4a + b - 15 = 0

For this equation to have infinitely many solutions, the coefficients of x on both sides must be equal to zero, meaning that:

3 = 0

This is not possible, so the equation cannot have infinitely many solutions for any values of a and b.

Therefore, there are no values of a and b for which the given equation will have infinitely many solutions.

All of the training times of which person had the greatest spread? Explain how you know. (b) The middle 50% of the training times of which person had the least spread? Explain how you know. (c) What do the answers to Parts 2(a) and 2(b) tell you about Adam’s and Miguel’s training times?

Answers

(a) Miguel had the greatest spread in training times.

(b) The middle 50% of Adam's training times had the least spread.

(a) To find the greatest spread in training times, we need to calculate the range of each person's training times. Range is the difference between the maximum and minimum values. Comparing the ranges, we can say that Miguel had the greatest spread in training times since his range is the largest.

(b) The middle 50% of the training times refers to the interquartile range (IQR), which is the difference between the third quartile (Q3) and the first quartile (Q1).

To find the least spread in the middle 50% of the training times, we need to compare the IQRs of each person. Adam's IQR is the smallest, which means the middle 50% of his training times had the least spread.

(c) The answers to parts (a) and (b) indicate that Miguel had a wider range of training times compared to Adam. However, Adam's middle 50% of training times had the least spread. This suggests that while Miguel's overall training times varied more, Adam's training times were more consistent within the middle range.

For more questions like Training click the link below:

https://brainly.com/question/8320293

#SPJ11

the manager at the yellow rose diner needs to purchase silverware for the restaurant. the silverware cost $230 and the manager placed an order for silverware in a state with a sales tax of 6.5%

Answers

The manager will need to pay $244.95 to purchase the silverware, including sales tax.

What is decimal?

Decimals are numbers that have two parts: a whole number part and a fractional part separated by a decimal point.

According to the given information:

If the silverware costs $230 and the sales tax is 6.5%, we need to calculate the amount of tax that will be added to the cost of the silverware:

Tax = 6.5% of $230 = 0.065 x $230 = $14.95

So the total cost of the silverware including tax is:

$230 + $14.95 = $244.95

Therefore, the manager will need to pay $244.95 to purchase the silverware, including sales tax.

To know more about Arithmetic operation visit: https://brainly.com/question/30553381

#SPJ1

. c) gordon has 4 cups of powdered sugar. he sprinkles 1/2 of the sugar onto a plate of lemon bars and the rest onto a plate of cookies. how much sugar does he sprinkle on the cookies?​

Answers

Gordon sprinkles 2 cups of powdered sugar onto the plate of cookies after he sprinkles 1/2 of the sugar, or 2 cups, onto the plate of lemon bars.

Gordon has 4 cups of powdered sugar. He sprinkles 1/2 of the sugar onto a plate of lemon bars and the rest onto a plate of cookies. We want to find out how much sugar he sprinkles on the cookies.

If Gordon sprinkles 1/2 of the sugar onto the plate of lemon bars, he uses 1/2 x 4 = 2 cups of powdered sugar for the lemon bars.

This leaves him with 4 - 2 = 2 cups of powdered sugar remaining for the plate of cookies.

Therefore, Gordon sprinkles 2 cups of powdered sugar onto the plate of cookies.

We can also verify this answer by using subtraction. If Gordon uses 2 cups of powdered sugar for the lemon bars, he has 4 - 2 = 2 cups of powdered sugar remaining. This means that he must have used the remaining 2 cups of powdered sugar for the plate of cookies.

Know more about cookies here:

https://brainly.com/question/31686305

#SPJ11

Find the measure of angle D.

Answers

Answer:

Step-by-step explanation:

3x4

Statistics from Cornell's Northeast regional Climate Center indicate that Ithaca, NY, gets an average of 36. 1 inches of rain each year with a


standard deviation of 5. 2 inches,


My friend stayed in Ithaca, NY there for 10 years, she said that the average while she was there was less than 34 inches. What is her vscore for


the 10 years?


(Round to the thousandth place) (Use a Standard Deviation that is rounded to the thousandth place)

Answers

Rounded to the thousandth place, your friend's z-score for the 10 years is approximately -0.404.

To calculate your friend's z-score for the 10 years she stayed in Ithaca, NY, you can use the following formula:

z = (X - μ) / σ

where:
- z is the z-score
- X is the sample mean (in this case, 34 inches)
- μ is the population mean (in this case, 36.1 inches)
- σ is the standard deviation of the population (in this case, 5.2 inches, rounded to 5.200 for thousandth place)

Plugging in the values:

z = (34 - 36.1) / 5.200
z = -2.1 / 5.200
z = -0.404

Therefore, your friend's z-score for the 10 years is approximately -0.404, rounded to the thousandth place.

More on z-score: https://brainly.com/question/29158825

#SPJ11

a man in a plane is looking down at a building below. if the man is 40,000 feet away from the building and the altitude of the man is 33,000 feel what is the angle of depression from the man to the building below

Answers

The angle of depression from the man to the building below is approximately 39.81°.

To find the angle of depression from the man to the building below, we'll use the tangent function and the given information.

Given:
- The man is 40,000 feet away from the building horizontally.
- The man's altitude is 33,000 feet.

Step 1: Identify the opposite and adjacent sides in relation to the angle of depression.
- The opposite side is the altitude (33,000 feet).
- The adjacent side is the horizontal distance (40,000 feet).

Step 2: Use the tangent function to find the angle of depression.
tan(angle) = opposite/adjacent
tan(angle) = 33,000/40,000

Step 3: Find the inverse tangent of the ratio to get the angle.
angle = arctan(33,000/40,000)

Step 4: Calculate the angle.
angle ≈ 39.81°

The angle of depression from the man to the building below is approximately 39.81°.

Learn more about Tangents: https://brainly.com/question/19064965

#SPJ11

A candlemaker prices one set of scented candles at $10 and sells an average of 200 sets each week. He finds that when he reduces the price


by $1, he then sells 50 more candle sets each week. A function can be used to model the relationship between the candlemaker's weekly


revenue, R(x) after xone-dollar decreases in price.


R(x)


R(x)


6,000+


4,000+


6,000+


1,000+


2. 000


2,000+


2,000


2,000+


-4,000


4,000


6,000+


-6,000


Graph w


R(x)


Graph X


R(x)


6,000+


1,000+


6,000+


1,000+


2,000+


2,000


-2,000+


2,000


1,000+


4,000


-6,000


6,000


Graph Y


Graph Z


This situation can be modeled by the equation y =


x +


x +


and by graph


Next

Answers

The equation of demand of candle sticks can be modeled by

y = 14 - 0.02x while the revenue function will be xy = 14x - 0.02x².

Here we are given the information that

200 candles are sold for $10 and,

250 candles are sold for $9

Let the Price be y while the Quantity sold be x

Hence, by one unit decrease in price P, the quantity sold is increased by 50 units.

Here the slope of the function will be

(10 - 9)/(200 - 250)

= - 1/50

= - 0,02

Now we will use the formula of the equation of a straight line

(y - y₁) = m(x - x₁)

where, m is the slope and x₁ , y₁ are some point on line

Hence we get

(y - 10) = -0.02(x - 200)

or, y - 10 = -0.02x + 4

or, y = 14 - 0.02x

The revenue function will be xy = 14x - 0.02x²

To learn more about Equations visit

https://brainly.com/question/16107051

#SPJ4

Correct Question

A candlemaker prices one set of scented candles at $10 and sells an average of 200 sets each week. he finds that when he reduces the price by $1, he then sells 50 more candle sets each week. a function can be used to model the relationship between the candlemaker's weekly revenue, r(x), after one-dollar decrease in price. this situation can be modeled by the equation y =

WITHIN FIVE MINS PLEASE



Point B has rectangular coordinates (-5, 12)



Write the coordinates (r, θ) for point B. (θ in degrees)

Answers

The polar coordinates (r, θ) for point B with rectangular coordinates (-5, 12) are (13, 112.62°).

The polar coordinates (r, θ) for point B with rectangular coordinates (-5, 12) can be determined as follows.

1. Calculate the radius r:

r = √(x² + y²) = √((-5)² + 12²) = √(25 + 144) = √169 = 13.

2. Calculate the angle θ in radians:

θ = arctan(y/x) = arctan(12/-5) ≈ -1.176 radians.

3. Convert θ from radians to degrees:

θ = (-1.176 * 180) / π ≈ -67.38 degrees.

4. Adjust the angle to the proper quadrant (since point B is in the second quadrant):

θ = 180 - 67.38 = 112.62 degrees.

So, the polar coordinates (r, θ) for point B are (13, 112.62°).

Learn more about Polar coordinates:

https://brainly.com/question/22810698

#SPJ11

Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar.


Lab tests of a new drug indicate a 70% success rate in completely curing the targeted disease. The doctors at the lab created the random data in the table using a representative simulation. The letter E stands for "effective," and N stands for "not effective. "



EEEE NEEE EEEE EEEN NEEN


NEEE EENE NNNE NEEN EENE


NENE EEEE EEEE NNNE ENEE


NEEN ENEE EENN ENNE NEEE


ENEN EEEE EEEN NEEE EENN


EENE EEEN EEEE EENE EEEE


ENEE ENNN EENE EEEE EEEN


NEEE ENEE NEEE EEEE EEEE


NENN EENN NNNN EEEE EEEE


ENNN NENN NEEN ENEE EENE


The estimated probability that it will take at least five patients to find one patient on whom the medicine would not be effective is BLANK The estimated probability that the medicine will be effective on exactly three out of four randomly selected patients is BLANK.


PLEASE HELP I NEED HELP :(


50 POINTS

Answers

To find the estimated probability that it will take at least five patients to find one patient on whom the medicine would not be effective, we need to find the probability of getting NNNNN as the first five patients. Since the success rate is 0.3 and the failure rate is 0.7, the probability of getting NNNNN is:

0.7 x 0.7 x 0.7 x 0.7 x 0.7 = 0.16807

Therefore, the estimated probability that it will take at least five patients to find one patient on whom the medicine would not be effective is 0.16807.

To find the estimated probability that the medicine will be effective on exactly three out of four randomly selected patients, we need to count the number of ways we can select three patients out of four and multiply it by the probability of getting EEE and NEEE for the selected patients and non-selected patients, respectively. The number of ways to select three patients out of four is:

4C3 = 4

The probability of getting EEE and NEEE for the selected patients and non-selected patients, respectively, is:

(0.7)^3 x (0.3) x (0.7) = 0.1029

Therefore, the estimated probability that the medicine will be effective on exactly three out of four randomly selected patients is 4 x 0.1029 = 0.4116 (rounded to 4 decimal places).

To know more about probability refer here

https://brainly.com/question/30034780#

#SPJ11

In △PQR, what is the length of segment QR? Right triangle PQR with PR measuring 56 and angles P and R measure 45 degrees. 28 28radical 2 56radical 3 56radical 2

Answers

Answer:

[tex]\overline{\sf QR}=28\sqrt{2}[/tex]

Step-by-step explanation:

If ΔPQR is a right triangle, where angles P and R both measure 45°, then the triangle is a special 45-45-90 triangle.

The measure of the sides of a 45-45-90 triangle are in the ratio 1 : 1 : √2.

This means that the length of each leg is equal, and the length of the hypotenuse is equal to the length of a leg multiplied by √2.

The legs of ΔPQR are segments PQ and QR.

The hypotenuse of ΔPQR is segment PR.

Therefore, to find the length of the leg QR, divide the length of the hypotenuse PR by √2.

[tex]\begin{aligned}\implies \overline{\sf QR}&=\dfrac{\overline{\sf PR}}{\sqrt{2}}\\\\&= \dfrac{56}{\sqrt{2}} \\\\&=\dfrac{56}{\sqrt{2}}\cdot \dfrac{\sqrt{2}}{\sqrt{2}}\\\\&=\dfrac{56\sqrt{2}}{2}\\\\&=28\sqrt{2}\end{aligned}[/tex]

Therefore, the length of segment QR is 28√2.

What’s the answer? I need help please

Answers

Answer:

-√3/2

Step-by-step explanation:

sin(x) is equal to 1/2 when x=7π/6 or 11π/6

cos(7π/6) = -√3/2

cos(11π/6) = √3/2

In the question, it says that cos(x) is <0, which means that it has to be negative

So, the answer is -√3/2

Answer:  C

Step-by-step explanation:

Think of a unit circle

sin x = -1/2 happens at 7[tex]\pi[/tex]/6 and 11[tex]\pi[/tex]/6, 3rd and 4th quadrant

Out of those 2 quadrants cos x is negative in the 3rd quadrant

So cos x= -√3/2

Morgan bought a sofa for $216. 0. the finance charge was $25 and she paid for it over 15 months.

use the formula approrimate apr =

(finance charge: #months)(12)

amount financed

to calculate her approximate apr

round the answer to the nearest tenth.

Answers

The approximate APR for Morgan's sofa purchase is 1.7%.

To calculate the approximate APR (Annual Percentage Rate) for Morgan's sofa purchase, we can use the formula:

APR ≈ (finance charge / # of months) x 12 / amount financed

Here, the finance charge is $25, the number of months is 15, and the amount financed is the total cost of the sofa minus the finance charge, which is:

financed= $216.00 - $25.00 = $191.00

on substitution:

APR ≈ (25 / 15) x 12 / 191

APR ≈ 0.2778 x 0.06283

APR ≈ 0.01743

Rounding the answer to the nearest tenth, we get:

APR ≈ 1.7%

Therefore, the approximate APR for Morgan's sofa purchase is 1.7%.

To know more about  APR refer here:

https://brainly.com/question/14184570

#SPJ11

if it's 9:45 am what time would it be in 9 hours?

Answers

Answer:

6:45pm

Step-by-step explanation:

Given: The time is currently 9:45am

To find: The time in 9 hours

To do this, we have to add 9 hours to 9:45am.

9:45am+9 hours=

6:45pm

Hope this helps! :)

Find the value of m if third quartile (Q3) of the data given below is 128. (Income Rs. ) 0-30, 30-60, 60-90, 90-120, 120-150, 150-180 (No. Of Labour) 2, 8 ,22 ,24 ,m ,9​

Answers

The value of median m that makes Q₃ equal to 128 is approximately 18.75.

What is median?

The median is the value that divides the higher half of a population, a probability distribution, or a sample of data from the lower half. It can be conceptualised as a data set's "middle" value to put it simply.

To find the value of m, we need to first calculate the median and third quartile of the data.

To calculate the median, we need to find the value that splits the data into two halves. Since the data is already sorted into intervals, we can find the cumulative frequency for each interval and use it to determine the median interval. The median interval is the interval that contains the median. We can then use the formula for the median of grouped data to calculate the median value.

Cumulative frequency for each interval:

- Interval 0-30: 2

- Interval 30-60: 2+8=10

- Interval 60-90: 10+22=32

- Interval 90-120: 32+24=56

- Interval 120-150: 56+m

- Interval 150-180: 56+m+9=65+m

Since there are 6 intervals, the median interval is the 3rd interval, which is 60-90. The lower limit of this interval is 60, and the cumulative frequency up to this interval is 32. The frequency of this interval is 22. Using the formula for the median of grouped data:

Median = L + ((n/2 - CF) / f) * w

where L is the lower limit of the median interval, CF is the cumulative frequency up to the median interval, n is the total sample size, f is the frequency of the median interval, and w is the width of the interval.

Plugging in the values, we get:

Median = 60 + ((50 - 32) / 22) * 30

Median = 60 + (18 / 22) * 30

Median = 60 + 15.45

Median ≈ 75.45

Now, to find the third quartile (Q₃), we need to find the value that splits the upper 50% of the data. Since Q₃ is the 75th percentile, the cumulative frequency up to Q₃ is 0.75 times the total sample size:

Q₃ = L + ((0.75 * n - CF) / f) * w

We know that Q₃ is 128, and we can plug in the values for L, n, CF, f, and w that correspond to the interval that contains Q₃:

128 = 120 + ((0.75 * 85 - 56 - m) / (24)) * 30

Simplifying and solving for m, we get:

m = 120 + ((0.75 * 85 - 56) / (24)) * 30 - 128

m ≈ 18.75

Therefore, the value of m that makes Q₃ equal to 128 is approximately 18.75.

Learn more about median on:

https://brainly.com/question/14532771

#SPJ4

If the ratio of ambers miniature house to the original structure is 2:35 and the miniature requires 4 square feet of flooring how much flooring exists in the original house

Answers

The original house has 70 square feet of flooring.

If the ratio of the miniature house to the original structure is 2:35, then we can say that the miniature house is 2/35th the size of the original house in terms of floor area. Let's assume that the original house has x square feet of flooring. Then, we can set up a proportion based on the ratios:

2/35 = 4/x

Solving for x, we get:

x = 70

Therefore if the ratio of ambers miniature house to the original structure is 2:35 and the miniature requires 4 square feet of the flooring then original house has 70 square feet of flooring.

For more questions like House click the link below:

https://brainly.com/question/15735166

#SPJ11

WILL GIVE BRAINLYES, 5 STARS, AND A THANKS
Choose an amount between $50.00 and $60.00 to represent the cost of a meal for a family. Be sure to include dollars and cents.


Part A: If the family has a 15%-off coupon, calculate the new price of the meal. Show all work or explain your steps. (2 points)


Part B: Calculate a 20% tip using the new price. What is the final cost of the meal? Show all work or explain your steps. (2 points)

Answers

Answer:

The price of the meal after the discount was (A)$48.11 and the final price of the meal was (B)$57.73.

Step-by-step explanation:

Let us consider the amount of money $56.60 as the cost of the meal.

So the amount of money is 56 dollars and 60 cents.

A: The family has a 15% off coupon.

Discount = 15% of 56.60=0.15x56.60=8.49

Now we subtract the discount amount from the original amount.

Cost of the meal = 56.60-8.49=48.11

So the final price of the meal for the family is $48.11 or 48 dollars and 11 cents.

B: The family gave a tip of 20%.

Amount of money tipped= 20% of 48.11=0.20 x 48.11=9.622

To get the final amount we add the tip to the discounted price.

The final cost of the meal= 48.11+9.622=57.732=57.73

Therefore the family paid a total of 57 dollars and 73 cents for the final cost of the meal after the discount and tip.

Hope this helps :)

Rewrite the expression using a single, positive exponent: 14^-3·14^12

Answers

Answer:

It's 14⁹.

Add the powers in the process of multiplying.

Which is -3 + 12 answer is 9.

Hope this helped!

The function f(x)=8x+3x^−1 has one local minimum and one local maximum.
This function has a local maximum at x= With a value of =
This function has a local minimum at x = With a value of =

Answers

The function f(x) = 8x + 3x^(-1) has a local maximum at x = 2 with a value of f(2) = 19, and a local minimum at x = -2 with a value of f(-2) = -19.Explanation:

To find the local extrema of a function, we need to find the critical points of the function, which are the points where the derivative is either zero or undefined. In this case, the derivative of f(x) is f'(x) = 8 - 3x^(-2), which is undefined at x = 0.Setting the derivative equal to zero, we get:8 - 3x^(-2) = 0Solving for x, we get:x = ±2

These are the critical points of the function. To determine whether each critical point is a local maximum or a local minimum, we need to examine the second derivative of the function.

The second derivative of f(x) is f''(x) = 6x^(-3), which is negative for x > 0 and positive for x < 0.Therefore, x = 2 is a local maximum of the function with a value of f(2) = 19, and x = -2 is a local minimum of the function with a value of f(-2) = -19. These are the only local extrema of the function, since the function is increasing for x < -2 and decreasing for -2 < x < 0, and then increasing again for x > 0.

For more similar questions on topic local maximum

brainly.com/question/7805334

#SPJ11

A rectangular field is 63 yards long and 21 yards wide. A fence is needed for the perimeters of the field. Fencing is also needed to divide the field into three square sections. How many feet of fencing are needed? Show step-by-step.

Answers

Answer: 210 yards of fencing will be needed

Step-by-step explanation: well the perimeter of this rectangular field is 21 + 63 + 21 + 63 yards or 2(21) + 2(63) yards which equals 168 yards.
To divide the field into 3 equal parts, u need to divide the length (63 yards) into 3 parts which also requires two more lines of fencing.
63/3=21 which means u get squares perfect squares when u divide. now that means that's an additional 21*2 yards of fencing since you need two more rows of fencing in the middle of the field to divide the length into three equal parts. 21*2 = 42 so thats an  additional 42 yards. The total amount of fencing is 168 + 42 = 210 yards.

The following information pertains to Rainey Inc. For 2020. Jan. 1 Number of common share issued and outstanding, 200,000

Feb. 1 Number of new common shares issued, 8,000

July 31 100% common stock dividend

Dec. 31 Reported net income of $560,000


What is the company’s earnings per share reported in its financial statements for the year ended December 31, 2020?

Select one:

a. $1. 35

b. $1. 90

c. $1. 45

d. $1. 3

Answers

The company’s earnings per share reported in its financial statements for the year ended December 31, 2020 is $1.45. The correct option is c.


To calculate earnings per share, we need to take the company's net income and divide it by the weighted average number of shares outstanding during the year.

First, let's adjust for the stock dividend on July 31. Since the dividend was 100%, we can double the number of shares outstanding to 416,000:

Jan. 1: 200,000 shares
Feb. 1: 8,000 new shares
July 31: 200,000 shares doubled to 400,000 shares
Dec. 31: 416,000 shares

Next, we need to calculate the weighted average number of shares outstanding during the year. We can do this by taking the number of shares outstanding for each period and multiplying it by the number of months those shares were outstanding:

Jan. 1 to Jan. 31: 200,000 shares x 1 month = 200,000
Feb. 1 to July 31: (200,000 + 8,000) shares x 6 months = 1,248,000
Aug. 1 to Dec. 31: 416,000 shares x 5 months = 2,080,000

Total weighted average shares outstanding: 3,528,000

Finally, we can divide the net income of $560,000 by the weighted average shares outstanding of 3,528,000 to get earnings per share of $0.1585. Multiplying this by 9 (since there are 9 months of the year remaining after February 1) gives us earnings per share of $1.4265. Rounded to the nearest penny, the answer is $1.45.

Thus, The correct option is c.

To know more about earnings per share, refer to the link below:

https://brainly.com/question/16562972#

#SPJ11

Customers arrive at a busy food truck according to a Poisson process with parameter λ. If there are i people already in line, the customer will join the line with probability 1/(i +1). Assume that the chef at the truck takes, on average, a minutes to process an order.



Required:


a. Find the long-term average number of people in line.


b. Find the long-term probability that there are at least two people in line

Answers

The required answer is P(at least 2) = P(at least 1) * (1/2) = (1 - e^(-λ * a)) * (1/2)

a. To find the long-term average number of people in line, we will use the following formula:

Average number of people in line = λ * a

Here, λ is the arrival rate of customers following a Poisson process, and a is the average time taken by the chef to process an order.

b. To find the long-term probability that there are at least two people in line, we first need to calculate the probability that there is at least one person in line. Then, we will subtract this probability from 1 to find the probability of having at least two people in line.

Probability of at least one person in line = 1 - Probability of no one in line

Since the arrival of customers follows a Poisson process, the probability of having no one in line is given by:

P(0) = e^(-λ * a)

Thus, the probability of at least one person in line is:

P(at least 1) = 1 - e^(-λ * a)

Now, we can calculate the probability of having at least two people in line by considering that the second person joins the line with probability 1/(1 + 1) = 1/2. So, the probability of at least two people in line is:

P(at least 2) = P(at least 1) * (1/2) = (1 - e^(-λ * a)) * (1/2)

To know more about the probability . Click on the link.

https://brainly.com/question/30034780

#SPJ11

3. The insurance company also offers safety glass coverage. There is a 50% chance of no repairs ($0), a 30% chance of minor repairs ($50), and a 20% chance of full replacement ($300). Which plan for optional safety glass coverage has the lower expected cost?

Enter your answer.

Answers

Plan C has the lower expected cost, so, this is best to minimize costs for safety glass coverage.

How can we compare the plans?

In order to compare expected cost of Plan C and D, we must calculate expected payout for each plan and add to the premium.

For Plan C, expected payout is:

= 0.5*(0) + 0.3*(50) + 0.2*(300)

= 15 + 60

= 75

The total expected cost of Plan C is:

= 75 + 50 + 20

= 145

For Plan D, expected payout is:

= 0.5*(0) + 0.3*(50) + 0.2*(300)

= 15 + 60

= 75

The total expected cost of Plan D is:

= 75 + 100 + 0

= 175

Therefore, the Plan C has the lower expected cost.

Read more about glass coverage

brainly.com/question/30557791

#SPJ1

I need to find the missing angle and arc measures.


please answer


Step by step

Answers

We will be sure to take your time and carefully consider the given information in order to find the missing angle and arc measures accurately.

To find the missing angle and arc measures, follow these steps:

1. Look at the given diagram to identify the angles and arcs involved.

2. Use the angle sum property of a circle to find the measure of the missing angle. This property states that the sum of the angles in a circle is equal to 360 degrees. So, if you know the measures of the other angles in the circle, you can subtract their sum from 360 to find the missing angle.

3. Use the arc angle formula to find the measure of the missing arc. This formula states that the measure of an arc is equal to the measure of its corresponding central angle. So, if you know the measure of the missing angle, you can use it to find the measure of the missing arc.

4. Check your answer by making sure that the sum of all the arc measures in the circle is equal to the circumference of the circle.

Overall, be sure to take your time and carefully consider the given information in order to find the missing angle and arc measures accurately.

To know more about arc measures refer here

https://brainly.com/question/24199694#

#SPJ11

The outside of a closed glass display case measures 22" x 15" x 12". The glass is half inch thick. How much air is contained in the case

Answers

The volume of the air in the container is: 3,585.125 in³

What is the Volume of the Box?

The volume of a box or cuboid is given by the formula:

V = L * W * H

Where:

L is length

W is width

H is height

We are given the external dimensions as:

Length = 22 inches

Width = 15 inches

Height = 12 inches

Since the glass is 1/2 inch thick, then the interior dimensions are:

New length = 22 - 1/2 = 21.5 inches

New Width = 15 - 1/2 = 14.5 inches

New height = 12 - 1/2 = 11.5 inches

Thus:

Volume of air in container = 21.5 * 14.5 * 11.5

= 3,585.125 in³

Read more about Volume of Box at: https://brainly.com/question/463363

#SPJ1

Other Questions
UC Berkley and UCLA are moving closer together due to being located on opposite sides of the San Andreas fault. Right now they are 550 km apart. They are moving at a rate of 20 mm/year. How far will they have to travel to visit their rival college 1,000,000 years in the future?1. 20 km 2. 350km3. 530km4. all of above Place the in chronological order to show cause and effect of how the cuban missile crisis started The Ksp of nickel hydroxide =6.01016 M.You may want to reference(Pages 744 - 750) Section 17.5 while completing this problem.1.) Calculate the molar solubility of Ni(OH)2 when buffered at pH= 8.0.Express your answer using one significant figure.2.) Calculate the molar solubility of Ni(OH)2 when buffered at pH= 10.3.Express your answer using one significant figure.3.) Calculate the molar solubility of Ni(OH)2 when buffered at pH= 11.9. A right rectangular pyramid is sliced vertically (down) at the red line by a plane not passing through the vertex of the pyramid m. What is the shape of the cross section?A. TrapezoidB. Rectangle C. TriangleD. Cylinder Rectangle ABCD and ABCD are similar.a. What is the scale factor from ABCD toABCD?b. What is the scale factor from ABCD toABCD? The measure of the average amount of energy produced by the motion of air molecules is what Evaluate the limit using L'Hospital's rulelim (e^x + 2x - 1)/2x Hydrologists sometimes use Manning's equation to calculate the velocity v, in feet per second, of water flowing through a pipe. The velocity depends on the hydraulic radius R in feet, which is one-quarter of the diameter of the pipe when the pipe a flowing full; the slope S of the pipe, which gives the vertical drop in foot for each horizontal foot; and the roughness coefficient n, which depends on the material of which the pipe is made. The relationship is given by the following. v = 1.486/n R^2/3 S^1/2 For a certain brass pipe, the roughness coefficient has been measured to be n = 0.014. The pipe has a diameter of 3 feet and a slope of 0.4 foot per foot. (That is, the pipe drops 0.4 foot for each horizontal foot.) If the pipe is flowing full, find the hydraulic radius of the pipe. () Find the velocity of the water flowing through the pipe. () 8.)State the physiological processes by which water and mineral salts are absorbed from the soil by root hairs. (2 marks) . Which of the following statements confirms the law of conservation of energy? Cause and Effect. Unbalanced forces acting on a Nebula result in___a. A constant linear motionb. Equilibrium of the nebulac. A change in its motion The polynomial 2x2 + 700x represents the budget surplus of the town of Alphaville. Betaville's surplus is represented by x2 - 100x + 80,000. If x represents the tax revenue inthousands from both towns, enter the expression that represents the total surplus of bothtowns together. The expression that represents the total surplus of both towns together is ? Find the shortest path from vertex A to vertex L. Give your answer as a sequence of vertexes, like ABCFIL The table shows theaverage rainfall, in inches, in Miami for eachof the first six months of 2020. Write orderedpairs for the data in the table 4. What is the difference in the radii of the circles? (3 points) (this is for the ana circle question 2. A slice of chocolate cake contains 560 Calories. a. Determine the number of calories found in the slice of cake. b. Determine the number of joules of energy for the slice of cake. c. Determine the number of kilojoules of energy for the slice of cake. 3. Determine the number of calories in 1.5 kilojoules of energy.SHIW WORK On January 1, 2021, XXX Company acquired 200,000 shares at $ 100per share of ZZZ Inc. , which represent 30% ownership. RequiredRecord the following transactions in the books of XXX Company(assuming there is significant influence and insignificant influence)1. The acquisition of shares done by XXX firm on January 1, 20202. The ZZZ Inc had reported net income of $ 4,000,0003. XXX Inc. Had announced and paid cash dividends of $ 800,0004. On December 31, 2020, ZZZ Inc. Shares been valued at $ 80 pershare, and XXX Company still owns 200,000 shares5. On December 31, 2021, ZZZ Inc. Shares would be valued at $ 88per share, and XXX Flowers Company will still own 200,000shares 3.6 is 5% of I need help with all 1.1 According to the dependency theory, what are some of the causes of inequalities between African and European countries? Substantiate your discussion with examples from your own observation. (5) 1.2 Discuss the major criticisms against dependency theory. Substantiate your discussion with suitable examples. (5) 1.3 Discuss differences between global and local PR and provide examples of organisations that practise global and local PR in South Africa. (5) In EFG, g = 5. 2 cm, e = 5. 1 cm and F=42. Find the area of EFG, to the nearest 10th of a square centimeter