Mathematics, 01.12.2019 02:31 brockandersin

Ametalworker has a metal alloy that is 20% copper and another alloy that is 70% copper. how many kilograms of each alloy should the metalworker combine to create 60 kg of a 50% copper alloy? the metal worker should use (blank) kilograms of the metal alloy that is 20% copper and (blank) kilograms of the metal alloy that is 70% copper.

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Ametalworker has a metal alloy that is 20% copper and another alloy that is 70% copper. how many kil...

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