Mathematics, 04.08.2019 03:30 bm42400

Ametalworker 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 80 kg of a 53% copper alloy?

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Ametalworker has a metal alloy that is 20% copper and another alloy that is 75% copper. how many kil...