Mathematics, 12.01.2021 21:00, joehelmy

metalworker has a metal alloy that is 20% copper and another alloy that is 75% copper. How many kilograms of each alloy should the metal worker combine to create 60kg of a 53%?

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

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