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Mathematics, 03.12.2020 01:00 MayFlowers

A contractor mixes concrete from bags of pre - mix for small jobs How many bags with 7% cement should he mix with 4 bags of 17% cement to produce a mix containing 11% cement ? A ) bags D) 15 bags B) 10 bags C ) 6 bags SHOW WORK
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A contractor mixes concrete from bags of pre - mix for small jobs How many bags with 7% cement shoul...
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