document.write( "Question 339646: How many grams of an alloy that is 70% silver should be melted with 60 grams of an alloy that is 20% silver to produce an alloy that is 30% silver? \n" ); document.write( "
Algebra.Com's Answer #243360 by checkley77(12844)\"\" \"About 
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.70X+.20*60=.30(60+X)
\n" ); document.write( ".70X+12=18-.30X
\n" ); document.write( ".70X-.30X=18-12
\n" ); document.write( ".40X=6
\n" ); document.write( "X=6/.4
\n" ); document.write( "X=15 OZ. OF 70% SILVER IS USED.
\n" ); document.write( "PROOF:
\n" ); document.write( ".70*15+.20*60=.30(60+15)
\n" ); document.write( "10.5+12=.30*75
\n" ); document.write( "22.5=22.5
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