document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=495150>Question 495150</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How much water must you add to a 40 L 80% acid solution to reduce it to 20% acid?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #335990 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=335990\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> How much water must you add to a 40 L 80% acid solution to reduce it to 20% acid? <BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "water + water = water<BR>\n" );
document.write( "0.20*40 + x = 0.80(40+x)<BR>\n" );
document.write( "Multiply thru by 100 to get:<BR>\n" );
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document.write( "20*40 + 100x = 80*40 + 80x<BR>\n" );
document.write( "20x = 60*40<BR>\n" );
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document.write( "x = 120 L (amt. of water to be added)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "============ </SPAN>\n" );
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