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01-10-2019
Mathematics

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a mixture of concrete is made up of sand and cement in a ratio of 5 : 3, How many cubic feet of each are needed to make 160 cubic feet of concrete mix

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marlenejaimesnunez marlenejaimesnunez

01-10-2019

Answer:

We need 160 cubic feet of concrete mix and 20 x 8 = 160, so we need to use 20 x 5 = 100 cubic feet of sand and 20 x 3 = 60 cubic feet of cement

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