Question

A 150- pound person loses 5.1 calories per minute when walking at a speed of 4 mph. How long must a person walk at this speed to lose at least 240 calories ?

Answer 1

Explanation:

240 cal / 5.1 cal/min = 47 minutes ( which is 47/60 hr)

4 mi/hr * 47/60 hr = 3.14 miles