Which of the following is a solution to the system of linear equations below? 3x+y=15 2x+2y=6 a. (–3, 6) b. (6, –3) c. (–6, 33) d. (6, 33)answer is

Hey Connor

B

Step-by-step explanation

3x + y = 15

2x + 2y = 6

To solve this equation, we want to start by solving 3x + y = 15 for y

3x + y = 15

y = -3x + 15

Then we are going to substitute that for y in 2x + 2y = 6 (I hope you know what substitute mean)

2x + 2y = 6

2x + 2(-3x + 15) = 6

2x - 6x + 30 = 6

-4x = 6 - 30

-4x = -24

Divide both sides by -4

-4x/-4 = -24/-4

x = 6

Now substitute 6 for x in y = -3x + 15

y = -3x + 15

y = -3(6) + 15

y = -18 + 15

y = -3

Thus,

The answer is B (6, -3)

I hope this answer helps you. Let me know if you have any additional questions about this problem or equation in general. As always, it is my pleasure to help students like you!

answer: 4/6 =5/7.5

step-by-step explanation: it is based on scale and the scale between the two is 1.25. the answer is correct but i dont know if i explained it right

36 girls

step-by-step explanation:

the 48 boys is 4 parts of the ratio

divide 48 by 4 to obtain one part of the ratio

= 12 ← 1 part of the ratio

3 parts = 3 × 12 = 36 ← number of girls