document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=571490>Question 571490</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How much pure alcohol must I add to 1 litter of 15% alcohol to produce a 35% alcohol solution? </SPAN>\n" );
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document.write( "let x= liters of pure alcohol to be added<BR>\n" );
document.write( "15%*1+100%*x=35%(x+1)<BR>\n" );
document.write( ".15+x=.35x+.35<BR>\n" );
document.write( ".65x=.20<BR>\n" );
document.write( "x=20/65=4/13<BR>\n" );
document.write( "ans:<BR>\n" );
document.write( "liters of pure alcohol to be added=4/13 </SPAN>\n" );
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