A metalworker 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 90 kg of a 51 % copper alloy?
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Home » Mathematics » A metalworker 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 90 kg of a 51 % copper alloy?