Water level 7

Between 9 PM and 6:45 AM, the water level in a swimming pool decreased by 4/9 inch. Assuming that the water level decreased constantly, how much did the water level drop each hour?

Correct answer:

h =  0.1975 in/h

Step-by-step explanation:

t1=9.00 t2=6:45=6 hr 45 min =6+6045=6.75 hr=6.75  t=t1t2=96.75=49=2.25 h x=4/9=940.4444 in  h=x/t=0.4444/2.25=0.1975 in/h

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