How many hours will it take a bicyclist traveling 17.6 feet per second to finish a 90-mile race? Round your answer, if necessary, to the nearest tenth.

Answer 1

Seconds in 1 hour = 60 * 60 = 3600

3,600 * 17.6 = 63,360 feet per hour.

5,280 = feet per mile

63,360 / 5280 = 12 miles per hour

90 / 12 = 7.5 hours