Question

Melinda had $45 when she went to the mall. She spent $9 on a pair of sunglasses. Then she wants to buy some shirts that are on sale for $12 each. Write and solve an inequality to represents the number of shirts can buy

Answer 1

First set up the inequality.
12x + 9 <= 45
subtract 9 from both sides
12x + 9 - 9 <= 45 - 9
12 x <= 36
divide both sides by 12
x < = 3
She can buy at most 3 shirts