Question

Sarah burns an average of 744 calories in 45 minutes while running. She ran at 10 miles per hour. There are 5,280 feet per a mile. How many calories did Sarah burn per foot? Round to the nearest tenthousandth.

Answer 1

(744 calories/ 45 minutes)* (60 minutes/ 1 hour)* (1 hour/ 10 miles)* (1 mile/ 5,280 ft)= 0.018788 calories/ft.
(Note that the units cancel out so you get the answer)

Rounded to the nearest ten thousandth, the final answer is 0.0188 calories/ft~