brianray1993ot8hlu brianray1993ot8hlu

17-07-2017
Mathematics

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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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musiclover10045 musiclover10045

17-07-2017

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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