document.write( "Question 715484: A metal alloy weighing 2 mg and containing 10% copper is melted and mixed with 1 mg of pure copper. What percent of the resulting alloy is copper? \n" ); document.write( "
Algebra.Com's Answer #439490 by josgarithmetic(39617)\"\" \"About 
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Total copper = \"%280.10%2A1+%2B+1%29\"mg. \r
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\n" ); document.write( "\n" ); document.write( "Fraction of new alloy as copper =\"%280.10%2A1%2B1%29%2F2\"
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