Mathematics, 02.03.2020 06:09, Arealbot

A metalworker has a metal alloy that is 20% copper and another alloy that is 75% copper. How many kilograms of each alloy should the metalworker combine to create 60 kg of a 64% copper alloy?

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A metalworker has a metal alloy that is 20% copper and another alloy that is 75% copper. How many ki...