Question

Define you’re available, write an inequality, solve.

Jackson has $144 to spend on T-shirts. He must pay $10.50 for each shirt and shipping cost $7.50. How many shirts can Jackson purchase with his $144?

Answer 1

Let s stand for the number of shirts Jackson can purchase.

10.50 s + 7.50 ≤ 144

He can purchase no more than 13 shirts.

Explanation:

Each shirt costs $10.50, plus an overall $7.50 shipping cost, and he can spend no more than $144 dollars. This means that it is a less than or equal to inequality.

To solve:

10.50 s +7.50 ≤ 144

10.50 s ≤ 144-7.50

10.50 s ≤ 136.50

s ≤ 136.50/10.50

s ≤ 13

This means that he can purchase no more than 13 shirts.