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4 April, 04:29

A duct must be 8 feet 9 1/2 inches long. It is assembled from pieces that are 1 foot 11 1/2 inches long when assembled. How many pieces are required and how much waste must be cut off the long section?

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  1. 4 April, 04:55
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    8 feet x 12 = 96 + 9 1/2 = 105 1/2 inches

    1 x 12 = 12 + 11 1/2 = 23 1/2

    105 1/2 / 23 1/2 = 4.489

    they will need 5 pieces, they will have 12 inches left over
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