document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=405455>Question 405455</A>: <I><SPAN STYLE=\"word-break: break-all;\"> please help me set up this equation : a chemistry student mixes a 10% solution with a 20% solution to get 20L of a 13% solution. how much of each is used?\r<BR>\n" );
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document.write( "i tried to do x + y =20(.13), .1x + .2y = .13<BR>\n" );
document.write( "and y= -2.47, so i don't think i did it right... \r<BR>\n" );
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document.write( "also, i have several more problems like this, so it would be useful to have a generic equation to plug the numbers into...<BR>\n" );
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document.write( "thanks </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #286362 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=286362\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> percent	----------------	quantity<BR>\n" );
document.write( "10.00%	----------------	x<BR>\n" );
document.write( "20.00%	----------------	20-x<BR>\n" );
document.write( "13.00%	----------------	20		<BR>\n" );
document.write( "...\r<BR>\n" );
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document.write( "10x+20(20-x)=13*20<BR>\n" );
document.write( "												<BR>\n" );
document.write( "10x+400	-20x=260		<BR>\n" );
document.write( "10x-20x	=260-400		<BR>\n" );
document.write( "-10x-=-140							<BR>\n" );
document.write( "/-10										<BR>\n" );
document.write( "x=14 liters=====> 10% solution<BR>\n" );
document.write( "balance = 6 liters 20%						<BR>\n" );
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