Question

Paul ran a 26 1/5 mile marathon in 2 3/4 hours. Write an inequality to describe the average speeds s of runners who were faster than Paul.

Answer 1

• s > 9 29/55

Explanation:

Paul ran a 26 1/5 mile marathon in 2 3/4 hours

Paul's average speed was:

• distance/time =
• 26 1/5 : 2 3/4 =
• 131/5 : 11/4 =
• 131/5 * 4/11 =
• 524/55 =
• 9 29/55 mph

Inequality for the speed of faster runners:

• s > 9 29/55