While on vacation, the Ferreira family will be driving 5 hours every day. They want to cover at least 240 miles each day. The inequality 5s≥240 expresses the average speed, s , they must maintain in miles per hour. What is the solution of this inequality?

Question

While on vacation, the Ferreira family will be driving 5 hours every day. They want to cover at least 240 miles each day. The inequality  5s≥240  expresses the average speed,  s , they must maintain in miles per hour. What is the solution of this inequality?

GPT 3.5 · Answer

To find the solution of the inequality, we need to solve for the average speed s .

Given: 5s ≥ 240

Divide both sides of the inequality by 5:
s ≥ 240/5
s ≥ 48

Therefore, the Ferreira family must maintain an average speed of at least 48 miles per hour in order to cover at least 240 miles each day during their 5-hour driving.