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A metalworker has a metal alloy that is 20​% copper and another alloy that is 60​% copper. How many kilograms of each alloy should the metalworker combine to create 90 kg of a 52​% copper​ alloy?
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A metalworker has a metal alloy that is 20​% copper and another alloy that is 60​% copper. How many kilograms of each alloy should the metalworker combine to create 90 kg of a 52​% copper​ alloy?

User Vikasing
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132% that what your answer going to be
User Robert Kaufmann
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