Leaking swimming pool

Between 10 PM and 7:10 AM, the water level in a swimming pool decreased by 5/12 inches . Assuming that the water level decreased at a constant rate, how much did the water level drop each hour?

Correct answer:

h =  1/22 inch/h

Step-by-step explanation:

t1=1210=2 h t2=76010=7+6010=607 60+10=60430=6437.1667 h  t=t1+t2=2+7.1667=6559.1667 h  H=1250.4167 inch  h=H/t=0.4167/9.1667=221 inch/h=0.0455 inch/h

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