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Mathematics, 18.07.2019 09:30 angoliabirtio
Ametalworker has a metal alloy that is 15% copper and another alloy that is 55% copper. how many kilograms of each alloy should the metalworker combine to create 120 kg of a 39% copper alloy?
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Ametalworker has a metal alloy that is 15% copper and another alloy that is 55% copper. how many kil...
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