Mathematics, 15.07.2019 19:30 shainaanderson24
How much of an alloy that is 20 % copper should be mixed with 400 ounces of an alloy that is 70 % copper in order to get an alloy that is 40 % copper?
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How much of an alloy that is 20 % copper should be mixed with 400 ounces of an alloy that is 70 % co...
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