document.write( "Question 1113802: May I please to ask for your help to solve the following;
\n" ); document.write( "How much of an alloy that is 40% copper should be mixed with 200 ounces of an alloy that is 70% copper in order to get an alloy that is 50% copper?\r
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Algebra.Com's Answer #728895 by Alan3354(69443)\"\" \"About 
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How much of an alloy that is 40% copper should be mixed with 200 ounces of an alloy that is 70% copper in order to get an alloy that is 50% copper?
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\n" ); document.write( "f = 40%
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\n" ); document.write( "200*70 + f*40 = (200+f)*50
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