SOLUTION: metalworker has a metal alloy that is 3030​% copper and another alloy that is 6565​% copper. How many kilograms of each alloy should the metalworker combine to create
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Question 1106872: metalworker has a metal alloy that is 3030% copper and another alloy that is 6565% copper. How many kilograms of each alloy should the metalworker combine to create 120120 kg of a 5151% copper alloy?