Mathematics, 29.06.2019 07:00 guzmangisselle

Ametalworker has a metal alloy that is 20% copper and another alloy that is 65% copper. how many kilograms of each alloy should the metalworker combine to create 120 kg of a 47% copper alloy?

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Ametalworker has a metal alloy that is 20% copper and another alloy that is 65% copper. how many kil...

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