document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=463646>Question 463646</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Sean wants to change 40 liters of a 60% solution of liquid hydrogen by draining off some liters and replacing them with an equal amount of a 20% solution of liquid hydrogen. If he wants to get a final mix of 52% of liquid hydrogen, how many liters must he drain off?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #317689 by </B><A HREF=/tutors/aboutme.mpl?userid=robertb><B>robertb(5830)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=robertb><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=robertb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=317689\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 40*0.60 - x*0.60 + x*0.20 = 40*0.52\r<BR>\n" );
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document.write( "==> 24 - 0.40x = 20.8\r<BR>\n" );
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document.write( "==> -0.40x = -3.2\r<BR>\n" );
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document.write( "==> x = 8 liters must be drained off. </SPAN>\n" );
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