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Mathematics, 16.07.2019 04:30 genyjoannerubiera
How much of an alloy that is 40% copper should be mixed with 400 ounces of an alloy that is 60% copper in order to get an alloy that is 50%
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How much of an alloy that is 40% copper should be mixed with 400 ounces of an alloy that is 60% copp...
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