Question

The Grinch needs new clothes. He spends $131 on new clothes. The shirts he bought were $28 each and the pants he bought cost $15 each. If he bought a total of 7 pieces of clothes, then how many shirts (x) and pants (y) did he buy?

Answer 1

x = 5 and y = 2

Explanation:

x = shirts

Shirts are 15 dollars

y = pants

Pants are 28 dollars

Some pairs that go up to 7 are

7-0

6-1

5-2

4-3

3-4

2-5

1-6

7-1

and if you do some elimination on ones that dont work you get 5 shirts and 2 pants.

5x15 is 75 and 2x28 is 56

75 + 56 = 131 and 131 = 131 so there are

5x and 2y