Question

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Answer 1

@Hero I'm sorry for bothering you, can you help me with this question please?

Answer 2

This is a 2x2 linear system. You know you have 150 students, so that is one equation. You also know that the tickets grossed $395, that is another equation. The answer must be true for both equations

Answer 3

...So you would use substitution OR elimination to solve the question.

Answer 4

elimination?

Answer 5

Yes either or works.

Answer 6

F + S = 150
F(2) + S(3) = 395

Answer 7

2f+3s=395

Answer 8

Yes, personally, I would say that substitution is easier for this equation because you can isolate a variable easily

Answer 9

How do you do it?

Answer 10

F + S = 150
- S -S
F = 150 - S

Answer 11

Now that you have F, you can sub it in your next equation to solve for S. Makes sense?

Answer 12

yeah

Answer 13

2(150-s) + 3s = 395

Answer 14

If you get stuck let me know.

Answer 15

300 -2s + 3s = 395

Answer 16

combine like terms

Answer 17

300 - 2s + 3s = 395
300 + s = 395
-300 -300
s = 95

Answer 18

Sub s into the other equation to find f, then check your work