Between 9 PM and 6:20 AM the water level in a swimming pool decreased by 4/15 inches assuming that the water level decrease at a constant rate how much does the water level drop each hour.

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step-by-step explanation:

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m∠5 + m∠3 = m∠1   is true.

m∠5 + m∠6 = 180 is true

m∠2 +m∠3 = m∠6   is true

m∠2 +m∠3 +m∠5 = 180   is true

y=20x

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44-3-3-3=35

35+4+4+4+4=51

so the ansewr would be 51 degreesat 7: 00