SOLUTION: how much of an alloy that 30% copper should be mixed with 300 ounces of an alloy that is 90% copper in order to get an alloy that is 40% copper ?
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Question 1057753: how much of an alloy that 30% copper should be mixed with 300 ounces of an alloy that is 90% copper in order to get an alloy that is 40% copper ?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = ounces of 30% copper alloy needed
1,500 ounces of 30% copper alloy are needed
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check:
OK
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