Question 397825
suppose that a city requires a 2.5% fall for a sewer pipe from the house to the main pipe at the street. How much vertical drop to the nearest foot must there be for a horizontal distance of 55 feet?
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Proportion:
vert/hor = vert/hor
x/55 = 2.5/100
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x = 55(2.5/100)
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x = 1.375 ft.
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Cheers,
Stan H.