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White raven [17]
3 years ago
15

What is the y-value of the solution to the system of equations?

Mathematics
2 answers:
dimaraw [331]3 years ago
7 0

Answer:

y = 2

Step-by-step explanation:

3x + 5y = 1

7x + 4y = −13

We will use the elimination method to eliminate the x variable. Then we will solve for y. We need the coefficients of the x-terms in the two equations to be additive inverses, so they will add to zero, eliminating x.

Multiply both sides of the first equation by -7, and multiply both sides of the second equation by 3.

-21x - 35y = -7

21x + 12y = -39

Now add the equations to eliminate x.

-23y = -46

Divide both sides by -23.

y = 2

Julli [10]3 years ago
4 0

The answer is y=2 !!!!!!!!!!!!!!

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Dafna1 [17]
Slope (y2-y1)/(x2-x1)
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Plug in any point
4 = 2/5(5) + b
4 = 2 + b, b= 2
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3 0
3 years ago
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Answer:

I think D

Step-by-step explanation:

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3 years ago
Francisco needed to get his computer fixed. He took it to the repair
grin007 [14]

Answer:

  $95 per hour

Step-by-step explanation:

The total of charges is the sum of the cost of labor and the cost of parts. The cost of labor is the product of hours (5) and the cost per hour (x). Then the equation for total cost is ...

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6 0
3 years ago
Create an expression, to equal 13, using any grouping of addition, subtraction, multiplication, and division. You must use all t
aleksandrvk [35]
(29 - 2 + (6 * 2)) / 3 = 13
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3 years ago
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(GIVING BRAINLIEST!!!!!!)<br><br> Solve 1 ÷ 1/2 = ________<br><br> A) 2<br> B) 3<br> C) 4<br> D) 5
Tcecarenko [31]

Answer:

B

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5 0
3 years ago
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