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Mathematics, 07.07.2019 02:30 joThompson

How much of an alloy that is 10% copper should be mixed with 600 ounces of an alloy that is 60% copper in order to get an alloy that is 20% copper?

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How much of an alloy that is 10% copper should be mixed with 600 ounces of an alloy that is 60% copp...
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