Calories and Exercise The chart shows the calories burned per hour for an average person who weighs 150 lb.
a) Estimate the number of calories Phyllis Nye, who weighs 150 lb, burns in a week if she stair-climbs for 2 hours each week and jogs at 5 miles per hour for 4 hours each week.
b) Estimate the difference in the calories Phyllis will burn each week if she runs for 4 hours at 8 miles per hour rather than does casual bike riding for 4 hours.
c) Assume Phyllis jogs at 5 miles per hour for 3 hours and bicycles at 13 miles per hour for 3 hours each week. Estimate the number of calories she will burn in a year from these exercises.
Activity | Calories* per Hour |
Running, 8 mph | 920 |
Bicycling, 13 mph | 545 |
Jogging, 5 mph | 545 |
Air-walking | 480 |
Stair-climbing | 410 |
Weight-lifting | 410 |
Walking, 4 mph | 330 |
Casual bike riding | 300 |
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