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Phantasy [73]
3 years ago
15

Write an addition sentence that helps you solve 51 - 9

Mathematics
1 answer:
Sati [7]3 years ago
5 0

Answer:

42

Step-by-step explanation:

hey 42+9=51 so this can be the ✔️answer

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PLEASE HElp asap <br> Solve for x.<br> x = [?]<br> X + 19<br> 7x + 9
Bess [88]
X + 19 + 7x + 9 = 180
8x + 28 = 180
8x = 180 - 28
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X = 152 : 8
X = 19
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3 years ago
Given the following list of numbers, find the mean. 5,6,12,2,5,12,14
mezya [45]

Answer:

the mean is 8

Step-by-step explanation:

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8 0
3 years ago
Which of the following equations has the same solutions as the equation 3x + 2y = -12? Check all that apply.
Mariulka [41]

Answer:

B.\ -3x - 2y = 12

C.\ 15x + 10y = -60

E.\ 6x + 4y = -24

F.\ 1.5x + y =-6

Step-by-step explanation:

Given

3x + 2y = -12

Required

Determine equations with same solution as 3x + 2y = -12

For a solution to have the same solution as 3x + 2y = -12, the equation must be expressed as 3x + 2y = -12

A.\ 3x - 2y = 12

This can not be expressed as 3x + 2y = -12

B.\ -3x - 2y = 12

Multiply through by -1

-1(-3x - 2y) = 12 * -1

3x + 2y = -12

This has the same solution as the given equation

C.\ 15x + 10y = -60

Divide through by 5

\frac{15x}{5} + \frac{10y}{5} = \frac{-60}{5}

3x + 2y = -12

This has the same solution as the given equation

D.\ 6x + 2y = -12

Divide through by 2

\frac{6x}{2} + \frac{2y}{2} = \frac{-12}{2}

3x + y = -6

This can not be expressed as 3x + 2y = -12

E.\ 6x + 4y = -24

Divide through by 2

\frac{6x}{2} + \frac{4y}{2} = \frac{-24}{2}

3x + 2y = -12

This has the same solution as the given equation

F.\ 1.5x + y =-6

Multiply through by 2

2*1.5x + 2*y =-6*2

3x + 2y =-12

This has the same solution as the given equation

G.\ x + \frac{2}{3}y = -12

Multiply through by 3

3 * x + 3*\frac{2}{3}y = -12*3

3x + 2y = -36

This can not be expressed as 3x + 2y = -12

The equations with the same solution as 3x + 2y = -12 are the ones that we were able to expressed as 3x + 2y = -12.

And the equations are:

B.\ -3x - 2y = 12

C.\ 15x + 10y = -60

E.\ 6x + 4y = -24

F.\ 1.5x + y =-6

7 0
3 years ago
HELP ME PLEASE
lesantik [10]
Use a ABC Indy and then you get doneBottle rocket launched what it what was the company’s profit was a
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Evaluate 150 -(2 + 2)^3.
RUDIKE [14]

Answer:

86

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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