When a store had sold 40% of the shirts that were on display, they brought out another 20 from the stockroom. The store likes to keep at least 140 shirts on display. The manager wrote the inequality:

Question

.40𝑥 + 20 ≥140

Solve for x.

Answer 1

First, let's simplify the inequality:

0.40x + 20 ≥ 140
0.40x ≥ 120
x ≥ 120 / 0.40
x ≥ 300

Therefore, the store must have at least 300 shirts on display in order to meet the manager's requirement.