An airplane’s altitude changed – 378 feet over 7 minutes. What was the mean change of
altitude in feet per minute?
To find the mean change of altitude in feet per minute, divide the total change in altitude by the total number of minutes.
Mean change of altitude = Total change in altitude / Total number of minutes
Mean change of altitude = 378 feet / 7 minutes
Mean change of altitude = 54 feet per minute
Therefore, the mean change of altitude in feet per minute was 54 feet.