SOLUTION: write 2 equations and solve:
A contractor mixes concrete from bags of pre-mix for small jobs. How many bags with 8% cement should he mix with 7 bags of 16% cement to produce a m
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A contractor mixes concrete from bags of pre-mix for small jobs. How many bags with 8% cement should he mix with 7 bags of 16% cement to produce a m
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Question 999820: write 2 equations and solve:
A contractor mixes concrete from bags of pre-mix for small jobs. How many bags with 8% cement should he mix with 7 bags of 16% cement to produce a mix containing 12% cement? Answer by josgarithmetic(39618) (Show Source):
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