Mathematics, 26.06.2019 23:00 wednesdayA

Ametalworker has a metal alloy that is 15% copper and another alloy that is 60% copper. how many kilograms of each alloy should the metalworker combine to create 100kg of a 51% copper alloy?

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Ametalworker has a metal alloy that is 15% copper and another alloy that is 60% copper. how many kil...