Mathematics, 11.01.2022 14:20 hernsl0263

a metal worker has a metal alloy that is 25% copper and another alloy that is 70%copper. How many kilograms of each alloy should the metalworker combine 60kg of a 61% copper alloy?

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a metal worker has a metal alloy that is 25% copper and another alloy that is 70%copper. How many ki...

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