SOLUTION: A contractor mixes concrete from bags of pre-mix for small jobs. How many bags with 8% cement should he mix with 24 bags of 12% cement to produce a mix containing 10% cement.
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Question 724563: A contractor mixes concrete from bags of pre-mix for small jobs. How many bags with 8% cement should he mix with 24 bags of 12% cement to produce a mix containing 10% cement.
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
.08x+.12*24=.10(24+x)
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