Question

MAFS.7.NS.1.3-FSA Practice

An airplane's altitude changed -378 feet over 7 minutes. What was the
mean change of altitude in feet per minute?​

Answer 1

`-54\ (ft)/(sec)`

Explanation:

we know that

To find out the mean change of altitude, divide the total change by the amount of time it takes

so

`-(378)/(7)=-54\ (ft)/(sec)` ---> is negative because the airplane is descending