Answer: Y = -12.25
Step-by-step explanation:
Answer:
-4.75
Step-by-step explanation:
5(-3) - 4y = 34
-15 - 4y = 34
-4y = 19
y = -4.75
Chris has 115$ to spend at a shopping mall . If he decides to spend $42 on clothing and $37 on food how much money will he have left
Answer:
$36 left
Step-by-step explanation:
42+37=79
115-79=36
Scientist Dr. Sparks counted the flashes of lightning he saw around his home town for three months. He saw 25 in June, 51 in July, and 62 in August. A. What is the average number a month? B. What is the average number he saw in a day? If you help, please answer quickly after this is posted!!!
Answer:
Average number in a month = 46
Average number in a day = 1.5
Step-by-step explanation:
Given that:
Scientific Dr. Sparks has counted the flashes of lightning around his home for a period of 3 months.
Number of sparks counted in June = 25
Number of sparks counted in July = 51
Number of sparks counted in August = 62
To find:
Average number in a month ?
Average number in a day ?
Solution:
Average of observations can be defined as the ratio of total sum of all the observations to the total number of observations.
[tex]Average = \dfrac{\text{Sum of all observations}}{\text{Total number of observations}}[/tex]
Average as per month = [tex]\frac{25+51+62}{3} =\frac{138}{3} = 46[/tex]
To find the average number in a day, we need to first find the number of days.
Number of days in June = 30
Number of days in July = 31
Number of days in August = 31
Total number of days = 92
Average as per month = [tex]\frac{25+51+62}{92} =\frac{138}{92} = 1.5[/tex]
Jenna has 3 red balloons and 5 blue balloons.
what is the ratio of the blue balloons. she adds 2 red balloons and remove 1 blue balloons what is the new ratio of the number of red balloons to the number of blue balloon
Answer:
5: 4
Step-by-step explanation:
original ratio: 3:5
new ratio: 5:4
hope it helps!
Identify the type of function represented by f(x)= 3/8(4)^x
Answer:
We have the following function:
f (x) = 3/8 (4) ^ x
The function is of the form:
f (x) = A (b) ^ x
Where,
A: initial amount
b: growth factor (b> 1)
x: time variable.
Answer:
f (x) = 3/8 (4) ^ x
It is an exponential function of the form:
f (x) = A (b) ^ x
Step-by-step explanation:
Answer:
Exponential growth
Step-by-step explanation:
Help me pleaseeeeeeeeeeeee
Answer:
i think the first one
Step-by-step explanation:
Answer:
A. 2x2y +7xy2
Step-by-step explanation:
I am confused on these 2
Answer:
1) x=20 degrees
2) x=25 degrees
Step-by-step explanation:
1) there is 9x if you add all of the angles together and there is 180 degrees in a triangle so 180 divided by 9 equals 20 degrees.
2)there is 7x and 5 dgress in total so we can make an equation:
7x+5=180
7x=175
x=25
What is the value of x?
Pythagorean theorem
Answer:
x=34
Step-by-step explanation:
a^2 + b^2 = c^2
16^2 + 30^2 = c^2
256 + 900 = c^2
1156 = c^2
sqrt1156 = c
34 = c
34 = x
Checked work with a calculator. Hope this helps. Have a nice day. May it be filled with joy and happiness. Please, be safe and wash your hands. Happy Holidays.
Answer:
x = 34
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Geometry
[Right Triangles Only] Pythagorean Theorem: a² + b² = c²Step-by-step explanation:
Step 1: Define
We are given a right triangle. We can use PT to find the missing side.
Step 2: Identify Variables
Leg a = 30
Leg b = 16
Hypotenuse c = x
Step 3: Solve for x
Substitute [PT]: 30² + 16² = x²Exponents: 900 + 256 = x²Add: 1156 = x²Isolate x: 34 = xRewrite: x = 342. What are the coordinates of point C?
Answer:
(3, -5)
Step-by-step explanation:
Can I please have brainliest?
Answer:
(3,-5)
Step-by-step explanation:
This is given if your chart goes by 1 unit, thus it goes 3 units to the right, and 5 units down (which makes it negative) therefore point c is located at (3,-5)
Which of the following is not the same as positive 7?
1. 0 +7
2. 07
3. 7 units to the left of O on a number line
4. the opposite of -7
Answer:
the answer is 3 because is you go left it turns it negative
If matrix C represents (A-B)+A, the value of the entry represented by C41 is
Answer:
The value of the entry represented by [tex]c_{41}[/tex] is 12.
Step-by-step explanation:
Let [tex]A = \left[\begin{array}{ccc}-5&3&8\\3&6&-5\\5&-9&0\\7&3&4\end{array}\right][/tex] and [tex]B = \left[\begin{array}{ccc}-7&-8&-5\\7&9&2\\2&5&-7\\2&8&-7\end{array}\right][/tex]. The sum of equal-sized matrices consist in the sum of each pair of corresponding elements. If [tex]C = (A-B)+A[/tex], then:
[tex]C = 2\cdot A -B[/tex] (1)
Then, [tex]c_{41}[/tex] is the element of matrix C located in the fourth row and first column and is defined by the following expression:
[tex]c_{41} = 2\cdot a_{41}-b_{41}[/tex] (2)
If we know that [tex]a_{41} = 7[/tex] and [tex]b_{41} = 2[/tex], then [tex]c_{41}[/tex] is:
[tex]c_{41} = 2\cdot (7)-2[/tex]
[tex]c_{41} = 12[/tex]
The value of the entry represented by [tex]c_{41}[/tex] is 12.
pls help i swear my dad will explode if dont get this question plsss help
Drag all of the division problems that have an estimated quotient of 12 into the box. 8 ÷ 0.95 18 ÷ 2.2 47.6 ÷ 3.9 10.6 ÷ 1.89 71.9 ÷ 6.5 123.4 ÷ 9.2 157.4 ÷ 16.4
Answer:
This is only one that includes 12 in its quotient, other quotients are 11 and 13 so I didn't add them :)
47.6/3.9
Step-by-step explanation:
so it is a estimate to 12 not 12 exact
Step-by-step explanation:
sorry
height up to 35,000 millimeters convert it's height in meters
Answer:
35000/1000 = 35m height
Answer: 35m
Step-by-step explanation: 35000mm -m
1m = 1000mm
therefore, 35000/1000
= 35m
HOPE IT HELPED U,
PLS MARK AS BRAINLIEST
^_^
help math 7th grade.........
Answer:
6/7
Step-by-step explanation:
Answer: 6/7
Step-by-step explanation:
Help !! No work is needed to be shown
Step-by-step explanation:
By Law of Indices, a^m / a^n = a^(m-n).
Therefore a² / a⁸ = a^(-6).
x = -6.
Chadwick also bought one share of Macy's stock on Nov 1, 2016, but he sold it three years later for $13.54
Answer:
$54.16
Step-by-step explanation:
It's Snowing in Syracuse
Snow is falling steadily in Syracuse, New York. After 2 hours, 4 inches of
snow has fallen.
14 CW
Time (hours) Snow (inches)
10 points
1
Ad or create
Please complete
4
6.5
Class comments
X
1. If it continues to snow at the same rate, how many inches of snow
would you expect after 6.5 hours? If you get stuck, you can use the
table to help
115
2. Write an equation that gives the amount of snow that has fallen after
x hours at this rate.
3. How many inches of snow will fall in 24 hours if it continues to snow at
this rate?
Answer:
13 inches ; 2 inches per hour ; 48 inches
Step-by-step explanation:
Given that :
Inches of snow after 2 hours = 4 inches
Since, snow is falling steadily ;
We can infer that:
Inches of snow per hour : (4 in / 2 hrs) = 2 in / hr
Hence, rate of snow fall = 2in /hr
Inches of snow after 6.5 hours
Rate per hour * Numbee of hours
2 * 6.5
= 13 inches
Amount of snow after x hours :
Rate * x
2 * x
= 2x
Inches of snow after 24 hours
2 * 24 hrs = 48 inches
In a soccer game, Dalton scores 5 out of 8 shots on the goal. If he continues at that same rate, how many goals would he score if he made 168 shots on the goal?
Answer:
He would have made 105 shots!
Step-by-step explanation:
8 shots × 21 is 168
5 shots × 21 is 105
So, he scored 105/168
Q and D are points on a polygon. Q' D' are points of the polygon under a translation. Determine the translation. Write your answer as (x,y).
Q (4,5) Q' (9,-1)
D (-5,-2) D' (0,-8)
Answer:
The translation is (5, -6)
Step-by-step explanation:
If the point (x, y) translated h unit right and k unit up, then its image is (x + h, y + k) and the translation is (h, k)If the point (x, y) translated h unit left and k unit up, then its image is (x - h, y + k) and the translation is (-h, k)If the point (x, y) translated h unit right and k unit down, then its image is (x + h, y - k) and the translation is (h, -k)If the point (x, y) translated h unit left and k unit down, then its image is (x - h, y - k) and the translation is (-h, -k)Let us solve the question
∵ The coordinates of point Q are (4, 5)
∴ x = 4 and y = 5
∵ The coordinates of point Q' are (9, -1)
∴ x' = 9 and y' = -1
→ That means x increased and y decreased ⇒ 3rd case above
∴ The point Q is moved to the right and down
→ By using the 3rd rule above ⇒ (x + h, y - k)
∵ x + h = 9
∵ x = 4
→ Substitute x by 4
∴ 4 + h = 9
→ Subtract 4 from both sides
∵ 4 - 4 + h = 9 - 4
∴ h = 5
∵ y - k = -1
∵ y = 5
→ Substitute y by 5
∴ 5 - k = -1
→ Subtract 5 from both sides
∵ 5 - 5 - k = -1 - 5
∴ -k = -6
→ Divide both sides by -1
∴ k = 6
∵ The translation is (h, -k) in the 3rd case
∵ h = 5 and k = 6
∴ The translation is (5, -6)
We can check the rule by finding D' the image of the point D
∵ D = (-5, -2)
∵ D' = (x + h, y - k)
∵ D' = (-5 + 5, -2 - 6)
∴ D' = (0, -8) as the given point D'
∴ The translation is correct
A store buys a video game for the wholesale price of $29.95. The markup on the game is 80%. If sales tax is 7.5%, how much money would you need to buy the game?
Answer:
57.9532
Step-by-step explanation:
Given that:
Wholesale price = 29.95
Markup = 80%
Sales tax = 7.5%
Retail price of the game :
Price before sale tax:
Wholesale price * ( 1 + markup %)
29.95 * (1 + 0.8)
29.95 * (1.8)
$53.91
Sales tax = 7.5%
53.91 * (1 + 0.075)
53.91 * (1.075)
= 57.9532
Hence, $57.9532 will have to be paid
This year, Carlos planted 6 more than one-third of the cucumber plants he planted last year. How many cucumber plants
did he plant this year if last year he planted 12 plants?
06
9
O 10
O 12
Answer:
10.
Step-by-step explanation:
6+1/3*12=6+4=10
Answer: 10
Step-by-step explanation:
4. Which statement is true?
A. The value of the 7 in 17,265 is 20 times the value of the 7 in 26,173.
B. The value of the 7 in 17,265 is 10 times the value of the 7 in 26,173.
C. The value of the 7 in 17,265 is 100 times the value of the 7 in 26,173.
D. The value of the 7 in 17,265 is to times the value of the 7 in 26,173.
Simplify the equation: (3√-5+2)(4√-12-1)
Answer:
undefined
Step-by-step explanation:
square root of a - # does not exist in the set of real numbers
Enter the range of values for x: AB=AD
Answer:
6 < x < 30
Step-by-step explanation:
The angle of the side AB = 48 degrees
the angle of the side AD = 2x - 12 degrees
If the angle AD is greater than zero;
2x -12 > 0
= 2x > 12
= x > 12/ 2
= x > 6
if the maximum angle of AD is equal to angle AB, then;
= 2x -12 = 48
2x = 48 + 12
2x/ 2 = 60 / 2
x = 30
Therefore, the range of x is; 6 < x < 30
Toby picks a 6-digit number.
It is larger than 199,999 and it is a multiple of 2.
How many different numbers could he have picked?
Step-by-step explanation:
Basically the question is asking how many multiples of 5 there are in the range 1000\leq x \leq 9999
Answer: 400000 numbers
the number we need is abcdef (a ≠ 0)
becauuse abcdef > 199999 and it is a multiple of 2.
=> 200000 ≤ abcdef ≤ 999998
=> there are: (999998 - 200000)/2 + 1 = 400000 (numbers)
Step-by-step explanation:
Brainliest if right
Answer:
the answer is B
Step-by-step explanation:
Liam and his twin sister, Lexi, are frosting cupcakes for a school bake sale. Liam frosts 8 vanilla cupcakes and 16 chocolate cupcakes. Lexi has less time, so she only frosts 4 vanilla cupcakes and 8 chocolate cupcakes. At the bake sale, the vanilla cupcakes are more popular than the chocolate ones. Who frosted a greater ratio of vanilla cupcakes to chocolate cupcakes HELP YALL
Answer:
They frosted the same amount
Step-by-step explanation:
did it on IXL and got it right ("Wonderful!")
oH mY gOd I dOnT kNoW what is 5 + 3 /s
Answer:
8/s
Step-by-step explanation:
do you really not no this or are you being sarcastic
A building is 50 ft high. At a distance away from the
building, a person notices that the angle of elevation
with the ground to the top of the building is 41°.
How far is the person from the base of the building?
Simplify
7⁸×7³×7⁴÷7⁹×7⁵
Answer:
7^53
Step-by-step explanation:
8x3=24
24x4=96
96/9=10.6
10.6x5=53
Answer:
7^11
Step-by-step explanation:
There is a rule for simplifying exponents: n^a + n^b = n^a+b.
The rule applies here too. 7 is the n and the exponents on top are a and b. Following the rule:
[tex] {7}^{8} \times {7}^{3} = {7}^{8 + 3} = {7}^{11} [/tex]
Then you continue this formula:
11+4-9+5 = 11
Since the end result is 11 the answer is
[tex] {7}^{11} [/tex]
find the product of following:(i) (x+3) (x+2) (ii) (2x-1) (2x-7)
Part (i)
Answer: x^2 + 5x + 6-----------------
Work Shown:
(x+3)(x+2)
y(x+2) ..... Let y = x+3
y*x + y*2 ... distribute
x(y) + 2(y)
x(x+3) + 2(x+3) .... plug in y = x+3
x*x + x*3 + 2*x + 2*3 ... distribute
x^2 + 3x + 2x + 6
x^2 + 5x + 6
=====================================================
Part (ii)
Answer: 4x^2 - 16x + 7-----------------
Work Shown:
We could follow the same set of steps as shown back in part (i), but I'll show a different approach. Feel free to use the method I used back in part (i) if the visual approach doesn't make sense.
The diagram below is a visual way to organize all the terms. Many textbooks refer to it as "the box method" which helps multiply out any two algebraic expressions.
Each inner cell is found by multiplying the corresponding outer terms. For instance, in the upper left corner we have 2x*2x = 4x^2. The other cells are filled out the same way.
The terms in those four inner cells (gray boxes) are:
4x^2-14x-2x7The like terms here are -14x and -2x which combine to -16x, since -14+(-2) = -16.
We end up with the answer 4x^2-16x+7