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Mathematics, 26.02.2021 22:40 leommarcoantonio

A metal worker has a metal alloy that is 30% copper and another alloy that is 75% copper how many kilograms of each alloy should a metal work for buying to grade is 60 KG of a 57% copper alloy

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A metal worker has a metal alloy that is 30% copper and another alloy that is 75% copper how many ki...

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