An astronaut is returning to Earth in a spacecraft. If the spacecraft is descending at a rate of 13.81 kilometers per minute, what will be its change in height after 51/2
minutes? Round your answer to the nearest kilometer.
To find the change in height, we need to multiply the descent rate by the time elapsed.
So in this case, the change in height would be:
13.81 km/minute * 5.5 minutes
Multiplying these numbers, we get:
75.955 km
Rounding this to the nearest kilometer, the change in height will be approximately:
76 km