Question

1. the water level in a pool decreases 24 inches in 4 hours. what is the average change in water level per hour?

Explanation:

Step1: Define total change and time

Total change = -24 inches (negative for decrease), Time = 4 hours

Step2: Calculate hourly average change

$\text{Average change} = \frac{\text{Total change}}{\text{Time}} = \frac{-24}{4}$

Step3: Compute the result

$\frac{-24}{4} = -6$

Answer:

The average change in water level per hour is -6 inches (a decrease of 6 inches per hour).