Question

Two stores are having a sale on T-shirts.Rose spends $63 for three T-shirts from store A and one from store B. Manny spends $140 on five T-shirts from Store A and four from store B. write and solve a system of equations to find the cost of T-shirts from Store A and Store B.

Answer 1

Let a and b be store A and store B, respectively. Then:
3a+b=63
5a+4b=140
So
12a+4b=252
5a+4b=140
7a=112
a=16
b=15
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