Question

The school store sells Midville High T-shirts for $12 each and Midville High gym shorts for $9 a pair. One afternoon they sold a total of 53 T-shirts and pairs of shorts for a total of $570. How many T-shirts did they sell and how many pairs of shorts did they sell?

Answer 1

570=12x+9y. x+y=53. y=53-x. 570=12x+9(53-x). 570=12x-9x+477. 93=3x. 31=x. This is how many shirts they sold. 53-31=y. 22=y. They sold 22 pants