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Mathematics, 16.10.2019 20:00 vxdsvsfdds
You are making 10 tons of concrete that is 37.9% cement by mixing a 25% cement mixture with a 68% cement mixture.
a) how much of the 68% cement mixture must you use?
b) how much of the 25% cement mixture must you use?
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You are making 10 tons of concrete that is 37.9% cement by mixing a 25% cement mixture with a 68% ce...
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