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

Answer:

$-54\ \frac{ft}{sec}$

Step-by-step explanation:

we know that

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

so

$-\frac{378}{7}=-54\ \frac{ft}{sec}$ ---> is negative because the airplane is descending