Mathematics, 06.04.2020 22:37 Brendah7145

A metal worker has a metal alloy that is 30% copper and another alloy that is 55% copper. how many kilograms of each alloy should the metal worker combine to create 90 kg of a 45% copper alloy?

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A metal worker has a metal alloy that is 30% copper and another alloy that is 55% copper. how many k...

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