Question

t-shirts for $12 each and sweatshirts for $15 each. You plan to spend $120 on t-shirts and sweatshirts. Write the equation that represents the situation.

Answer 1

12t + 15s = 120

Basically, substitute 0 for t, 0 for s, and then find the point where t = s (i.e. you spend as much on t-shirts as you do on sweatshirts.)

12(0) + 15s = 120
15s = 120
15s/15 = 120/15
s = 8

12t + 15(0) = 120
12t = 120
12t/12 =120/12
t = 10

12t + 15s = 120
12t = 15s
15s + 15s = 120
30s = 120
30s/30 = 120/30
s = 4
12t + 15(4) = 120
12t + 60 = 120
12t + 60 - 60 = 120 - 60
12t = 60
12t/12 = 60/12
t = 5

So you can by 8 sweatshirts, 10 t-shirts, or half and half (4 sweatshirts and 5 t-shirts).

Answer 2

did that help u

Answer 3

Yeah thanks so much (:

Answer 4

click best reponse

Answer 5

ty

Answer 6

np.. (;