Question

A mountain climber's change in elevation over an 8-hour period is −248 feet . What is the mountain climber's average change in elevation per hour for that time period?
-31 ft
-248 ft
31 ft
1,984 ft

Answer 1

-31 ft  average change per hour

-248/8 = -31

Answer 2

It is given that the mountain climber's change in elevation over an 8-hour period is −248 feet. Therefore, to find the average change in elevation per hour for that time period all that we need to do is divide the total change in elevation by the the time taken.

Therefore, average change=$\frac{-248}{8}=-31$ feet

Therefore, the first option is the correct option.