Problema Solution
A 150-lb person who runs at 6 mph for 1 hr burns about 720 calories. The same person, walking at 2 mph for 90 min, burns about 120 calories. Suppose a 150-lb person runs at 6 mph for 75 min. How far would the person have to walk at 2 mph in order to burn the same number of calories as burned when running?
The eperson has to walk ___ miles.
Answer provided by our tutors
while running at 6 miles/hr:
1 hr 720 calories
=> 75 min. calories burned = 900 calories
while walking at 2 miles/hr:
90 min. 120 calories
1 calorie = 3/4 minutes
900 calories = 675 minutes