Question

Hot air balloons generally descend at a rate of 200 to 400 feet per minute. Four balloons descend 200 feet per minute for 9 minutes. Find the total change in altitude for all 4 balloons.

Answer 1

Answer: $1800\text{ feet}$

Step-by-step explanation:

Given : Hot air balloons generally descend at a rate of 200 to 400 feet per minute.

Also, Four balloons descend 200 feet per minute for 9 minutes.

Then, the total change in altitude for all 4 balloons will be :-

$200\times9=1800\text{ feet}$

Hence, the total change in altitude for all 4 balloons will be : Balloon descends 18 feet in 4 minutes.