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.

1 answer

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