Question

Lia has a goal of walking at least 20 miles. She walks at a rate of 5 miles per hour. Which inequality can Lia use to find h, the number of hours she should walk in order to meet or exceed her goal? A. 5h ≥ 20 B. 5h ≤ 20 C. H+5 ≥ 20 D. H+5 ≤ 20

Answer 1

5h ≤ 20 or h ≤ 4

Explanation:

Lia walks at a rate of 5 miles per hour.

Lia has a goal of walking at least 20 miles

Let h be the number of hours she should walk in order to meet or exceed her goal.

At least in inequality means ≤. ATQ,

5h ≤ 20

Dividing both sides by 5.

h ≤ 4

So, she should walk atleast 4 hours. Hence, the correct option is (b).