document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=703984>Question 703984</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many liters of a 9% solution of salt should be added to a 21% solution in order to obtain 540 liters of a 15% solution? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #433871 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=433871\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Notice that 15 is exactly in the middle of 9 and 21. EXACTLY.  Maybe half of 540 liters of each solution?\r<BR>\n" );
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document.write( "x and y are liters volume of the 9% and the 21% respectively, to use.<BR>\n" );
document.write( "x+y=540.\r<BR>\n" );
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document.write( "Account for the percntages,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%2A0.09%2By%2A0.21%29%2F540=0.15 ALIGN=MIDDLE  ALT=\"%28x%2A0.09%2By%2A0.21%29%2F540=0.15\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%2A0.09%2By%2A0.21%29=0.15%2A540 ALIGN=MIDDLE  ALT=\"%28x%2A0.09%2By%2A0.21%29=0.15%2A540\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=9%2Ax%2B21%2Ay=15%2A540 ALIGN=MIDDLE  ALT=\"9%2Ax%2B21%2Ay=15%2A540\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Substitute x=540-y into this equation,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=9%2A%28540-y%29%2B21%2Ay=15%2A540 ALIGN=MIDDLE  ALT=\"9%2A%28540-y%29%2B21%2Ay=15%2A540\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Continue to find y...<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=12y=15%2A540-9%2A540 ALIGN=MIDDLE  ALT=\"12y=15%2A540-9%2A540\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=540%2A%286%2F12%29 ALIGN=MIDDLE  ALT=\"y=540%2A%286%2F12%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=270 ALIGN=MIDDLE  ALT=\"y=270\"   DISABLED_style= \"max-width:90%; height:auto;\" > liters </SPAN>\n" );
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