Mathematics, 06.11.2020 22:50 jjaerere6609

How much of an alloy that is 30% copper should be mixed with 50 ounces of an alloy that is 60% copper in order to get an alloy that is 40% copper?

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How much of an alloy that is 30% copper should be mixed with 50 ounces of an alloy that is 60% coppe...