document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=726836>Question 726836</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How much pure water has to be added to a 5% salt solution to end up with 20 gallons of a 3% solution? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #444883 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=444883\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> VARIABLES TO USE<BR>\n" );
document.write( "x = volume of water to use<BR>\n" );
document.write( "y = volume of the salt solution to use<BR>\n" );
document.write( "M = volume of resulting solution, 20 gallons<BR>\n" );
document.write( "H = percent salt solution to use, 5%<BR>\n" );
document.write( "T = percent salt solution result for mixture, 3%\r<BR>\n" );
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document.write( "MAKE EQUATIONS BASED ON PROBLEM DESCRIPTION<BR>\n" );
document.write( "Account for salt.  Note very critically, the amount of water and salt solution are both unknown.  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28Hy%2F%28x%2By%29=T%29 ALIGN=MIDDLE  ALT=\"highlight%28Hy%2F%28x%2By%29=T%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "...AND, account for materials to use.  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28x%2By=M%29 ALIGN=MIDDLE  ALT=\"highlight%28x%2By=M%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "SOLVE THE SYSTEM<BR>\n" );
document.write( "The only unknowns are x and y.  Solve this system for x and y.<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28x%2By=M%29 ALIGN=MIDDLE  ALT=\"highlight%28x%2By=M%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "COMPUTE VALUES OF x AND y<BR>\n" );
document.write( "Substitute the known, given values into the formulas for x and y to find their values. </SPAN>\n" );
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