Mathematics, 18.12.2020 01:20 Biank2286
a metal worker has a metal alloy. that is 20% copper and another alloy that is 65% copper. how many kilograms of each alloy should the metalworker combine to create 90 kg of a 56% copper alloy
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a metal worker has a metal alloy. that is 20% copper and another alloy that is 65% copper. how many...
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