Kevin and Clark each bought a new book for $50. Kevin sold his book to the used bookstore for 25% less than the original price. Clark sold her book to the used bookstore for 40% less than the original price. How much more money, in dollars, did Kevin receive for his book than Clark received for her book?

Answer:

4600 is the answer to this

Answer: $36.45

Step-by-step explanation:

45(.25)=11.25

45-11.25=33.75

33.75(.08)=2.70

33.75+2.70=36.45

Answer:

We know that:

She makes $19 per hour of lifeguarding.

She makes $8 per hour walking dogs.

She can work at most 7 hours per week.

She must earn a minimum of $80 per week.

If x represents the number of hours lifeguarding and y represents the number of hours walking dogs, the inequalities will be:

x + y ≥ 7 hours.

(this says that she can work at most 7 hours per week)

x*$19 + y*$8 ≥ $80

(this says that she can earn a minimum of $80)

Then the system of inequalities is:

x + y ≥ 7 hours.

x*$19 + y*$8 ≥ $80

To graph these two we can write them as lines in standard form and simply graph both inequalities, the solution of the system will be the intersection between the solutions of each inequality.

Here we also should add the inequalities:

x ≥ 0

y ≥ 0

So we only look at the first quadrant.

The graph can be seen in the image below: (the dark blue is the solution region for the first inequality, the light blue one is the solution region for the second inequality)

One possible solution can be:

x = 4 and y = 1

or

x = 4 and y = 2

and there are a lot of other possible solutions.

Answer:

Step-by-step explanation:

Answer:

The slope or gradient of a line is a number that describes both the direction and the steepness of the line.

Step-by-step explanation:

Slope is calculated by finding the ratio of the "vertical change" to the "horizontal change" between (any) two distinct points on a line.

Answer:

11. B

12. C

Step-by-step explanation:

11. The x-axis number cannot have repeating numbers for it to be a function. The y-axis can have repeating numbers.

12. The graph on C passes the vertical line test, thus it's a function.

Answer:

Water Stats

The average family can waste 180 gallons per week, or 9,400 gallons of water annually, from household leaks. That's equivalent to the amount of water needed to wash more than 300 loads of laundry. Household leaks can waste approximately nearly 900 billion gallons of water annually nationwide.

Step-by-step explanation:

THATS FOR NUMBER 2

Answer:

19.3 Gallons

Step-by-step explanation:

83066/1000 to get back to liters

83.066 Liters/4.54=19.3 Gallons

Answer:

No of hits = 26

Step-by-step explanation:

Given that,

Batting average = 0.4727272

His player has 55 at bats.

We need to find the number of hits. Let the number of hits be x. Using formula for average as :

[tex]\dfrac{x}{55}=0.4727272\\\\x=0.4727272\times 55\\\\x=25.99\\\\or\\\\x=26[/tex]

So, there are 26 number of hits.

Answer:

9000

Step-by-step explanation:

1km=1000m

9×1000=9000

Answer:

$6.73

Step-by-step explanation:

1 bacon = $0.55

5 x $0.55 = $2.75

1 egg = $1.24

2 x $1.24 = $2.48

1 apple juice = $1.50

  $2.75

  $2.48

+ $1.50

————

  $6.73

Therefore, your answer is $6.73.

Answer:

In total, Alfredo paid $6.73 for his meal.

Step-by-step explanation:

To find the cost of all of the food products, multiply the quantity of the food by the prices. So, for example:

Bacon: 5 x $. 55= $2.75

Eggs: 2 x $1.24 = $2.48

Apple Juice: 1 x $1.50 = $1.50.

Now, add.

$2.75+$2.48+$1.50= $6.73

Please like and mark brainliest!

Hope it helps!

Answer:

Each part is 56 11/15 m long.

Step-by-step explanation:

325 4/5 - 150 3/5

= 170 1/5

170 1/5 = 851/5

851/5 / 3

= 851/5 * 1/3

= 851/15

= 56 11/15.

Answer:

can you give me brainliest?

Step-by-step explanation:

Answer:

13 hours

Step-by-step explanation:

First you have to find the hourly rate at which money is being earned. To do so you divided the money earn ($342) by how many hours it took to earn (18 hours).

Once you do that you're given $19.00 per hour.

Now take the money earned with the unknown time ($247) and divide it by money being made per hour ($19)  and you're given 13 hours

Answer:

13

Step-by-step explanation:

First, you need to find out how much money he is making per hour. To do that, we need to do $342 divided by 18 hours. This gives us 19. We now know that Kevin is making $19 an hour. Next, do $247 divided by $19. This gives us 13. He would need to work 13 hours to make $247.

Answer:

a) 5.2 cm

b) 296.38 cm²

Step-by-step explanation:

a) Encontrar la apotema

La fórmula se da como:

A = s / 2 bronceado (180 / n)

s = Largo del lado = 6cm

n = Número de lados = 6 porque el polígono es un hexágono

Por eso,

Apotema = 6/2 × bronceado (180/6)

= 6/2 × tan 30

= 5.1961524227cm

Aproximadamente = 5.2 cm

Apotema = altura de las caras triangulares = 5.2cm

b) Superficie total

Área de superficie de una pirámide hexagonal = 3√3 / 2b² + 3b√h² + 3b² / 4

b es la longitud de la base. = 6cm

s es la altura inclinada. = 10cm

3√3 / 2 × 6² + 3 × 6√10² + 3 × 6² / 4

A = 296.38 cm²

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Answer:

choice c has a value of .9, so c

Step-by-step explanation:

i hope this helps

Answer:

420 minutes

Step-by-step explanation:

You would have to multiply 7 hours by 60 minutes to get 420 minutes.

Hope this helped you out!!

Step-by-step explanation:

I believe the answer is C

Answer:

15

Step-by-step explanation:

Good luck

Answer:

49.2°

Step-by-step explanation:

To solve for x you'll need to find the cosine of x°.

To find the cosine you will need to divide the adjacent side to it by the hypotenuse.

cos x°= [tex]\frac{17}{26}[/tex]

Using a calculator to solve you'll get that x ≈ 49.2°

Answer:

B

Step-by-step explanation:

If x is any larger than 4 it would be greater than 5, since 2*4-3=5

If x was any smaller than -1  it would be greater than 5, since 2*-1-3=|-5|=5

C hope this help you

Answer:

a ≤ −4 or a ≥ 8

Step-by-step explanation:

Hope This Helps!

Answer:

Rational.

Step-by-step explanation:

Natural numbers are numbers 1 through infinite.

Whole numbers are numbers 0 through infinite.

Integers are negative numbers (No decimals nor fractions)

Rational numbers are fraction/decimal numbers (can be negative).

Irrational numbers are squared numbers.

Real numbers includes all of the above mentioned.

Hope this helps.

Answer:

A. rational numbers

Step-by-step explanation:

-1/4 belongs to rational number

Complete question :

The tower is 10.00 m tall, and the angle of depression from the top of the tower to the point on the ground is 22°How far is the point from the base of the tower.

Answer:

4.04 meters

Step-by-step explanation:

To obtain the distance between baso of tower and point P on the ground as shown in the solution diagram :

Using trigonometry :

Tan θ = Opposite / Adjacent

Tan 22° = x / 10

0.4040262 = x / 10

0.4040262 * 10 = x

x = 4.04

Hence, distance between base of tower and point P on the ground is 4.04 meters

Answer:

8 has to be included in the data set. Since 8 is the mode, and the mode is the number that is seen the most in a set of numbers, 8 has to be in the data set for it to be the mode. Therefore, the answer is 8.

Answer:

I would bring the Harry Potter book collection so I wouldn't be bored, please mark brainliest!

Step-by-step explanation:

Answer: The correct answer should be x < 6

Step-by-step explanation:

When you multiplied both sides of the inequality by 3 to get rid of the /3, you didn't multiply 4 by 3.

Hope this helps!

[tex] \bold{THE \: ADDITION}[/tex]

or addition is the mathematical operation of composition that consists of combining or adding two or more numbers to obtain a final or total quantity. The addition also illustrates the process of joining two collections of objects in order to obtain a single collection

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[tex] \red{ \huge{ \texttt{ACTIVITY}}}[/tex]

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[tex] \bold{BRAINLY MENTALMENTE}[/tex]

Answer:

2 + 2 = 4

10 + 10 = 20

8 + 8 = 16

Step-by-step explanation:

Answer:

The first operation is to add, and you are adding 3 to both sides of the equation to isolate the x.

Step-by-step explanation:

Note the equal sign, what you do to one side, you do to the other. You are solving for the variable, x, when solving this equation.

Remember to do the opposite of PEMDAS. PEMDAS is the order of operation, and stands for:

Parenthesis

Exponents (& Roots)

Multiplication

Division

Addition

Subtraction

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The first step is to add 3 to both sides of the equation:

(x/3) - 3 (+3) = 11 (+3)

(x/3) = 11 + 3

(x/3) = 14

The second step is to multiply 3 to both sides of the equation:

(x/3) * 3 = (14) * 3

x = 14 * 3

x = 42

42 would be your final answer.

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