document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=708332>Question 708332</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I want to make 200 LIters of a 5% acid solution. If I have a 25% acid solution, how much water and how much of the 25% acid solution should I use? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #436064 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=436064\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> EDIT: Added explanation after the end.\r<BR>\n" );
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document.write( "Water with \"nothing else\" in it will have 0% acid.  You have 25% acid and you want to add water, of 0% acid to make 5% acid.\r<BR>\n" );
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document.write( "How much acid will be?<BR>\n" );
document.write( "How much volume of mixture will result?<BR>\n" );
document.write( "What concentration of acid must result?<BR>\n" );
document.write( "----------> Rational Equation:\r<BR>\n" );
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document.write( "Let x be how much water<BR>\n" );
document.write( "Let y be how much 25% acid\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%280%2Ax%2B25%2Ay%29%2F200=5 ALIGN=MIDDLE  ALT=\"%280%2Ax%2B25%2Ay%29%2F200=5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "AND<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2By=200 ALIGN=MIDDLE  ALT=\"x%2By=200\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Solve for y in the rational equation.  Use that result in the volume sum equation to find x.\r<BR>\n" );
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document.write( "FURTHER EXPLANATION:  The reason I said that last part is because <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0%2Ax=0 ALIGN=MIDDLE  ALT=\"0%2Ax=0\"   DISABLED_style= \"max-width:90%; height:auto;\" > in the rational equation.  This means the rational equation only has one variable, the y.  One single linear y, easy to solve.  Then use the volume sum equation to find x. </SPAN>\n" );
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