The water level drop each hour by 0.0384 inch
Firstly, the deacrease in water level is takes as per the question
Decrease = 3/8 inches
Decrease=0.375 inches
Then the time interval is calculated
From 10 pm to 7:45 hours will be 9.45 hours
Time interval= (9 + 45/60) hours
Time interval=9.75 hours
Now, the drop in water level per hour is determined, to do so, total water level decreased is divided by the time taken to decrease that water level
that is 0.375/9.75 inches/hour
= 0.03846 inches/hour
Therefore, if between 10 P.M. and 7:45 A.M., the water level in a swimming pool decreased by 3/8 inches and the water level decreased at a constant rate, the water level drop each hour is 0.03846
To learn more about water level calculation refer here:
brainly.com/question/13341866
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