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3 May, 14:39

A cement bridge post is 24 inches square and 15 feet 9 inches in length. If the cement weighs 145 pounds per cubic foot, how much does one bridge post weigh?

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  1. 3 May, 16:59
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    9,135 lb

    Step-by-step explanation:

    24 inches = 2 ft

    12 in = 1 ft

    9 in = 0.75 ft

    volume = 2 ft * 2 ft * 15.75 ft = 63 ft^3

    63 ft^3 * 145 lb/ft^3 = 9,135 lb
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