document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=644151>Question 644151</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many liters of a 70% alcohol must be added to 50 liters of a 40% alcohol solution to produce a 50% alcohol solution ? tanx so mmuch<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #404890 by </B><A HREF=/tutors/aboutme.mpl?userid=nerdybill><B>nerdybill(7384)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nerdybill><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=nerdybill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=404890\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> How many liters of a 70% alcohol must be added to 50 liters of a 40% alcohol solution to produce a 50% alcohol solution ?<BR>\n" );
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document.write( "Let x = amount (liters) of 70% added<BR>\n" );
document.write( "then<BR>\n" );
document.write( ".70x + .40(50) = .50(x+50)<BR>\n" );
document.write( ".70x + 20 = .50x+25<BR>\n" );
document.write( ".20x + 20 = 25<BR>\n" );
document.write( ".20x = 5<BR>\n" );
document.write( "x = 5/.20<BR>\n" );
document.write( "x = 25 liters<BR>\n" );
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