document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=500204>Question 500204</A>: <I><SPAN STYLE=\"word-break: break-all;\"> how many quarts of pure antifreeze must be added to 9 quarts of a 30% antifreeze solution obtain a 50% antifreeze solution </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #338048 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=338048\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 	percent	----------------	quantity									<BR>\n" );
document.write( "Alcohol I	30	----------------			9	quarts						<BR>\n" );
document.write( "Alcohol II	100	----------------			x	quarts						<BR>\n" );
document.write( "Mixture	50	----------------	9	+	x	quarts						<BR>\n" );
document.write( "												<BR>\n" );
document.write( "30*9+100x=50(9+x)<BR>\n" );
document.write( "270	+	100	x	=	450	+	50	x				<BR>\n" );
document.write( "100	x	+	-50	x	=	450	-	-270				<BR>\n" );
document.write( "50	x	=	180									<BR>\n" );
document.write( "/	50											<BR>\n" );
document.write( "x	=	3.6										<BR>\n" );
document.write( "		3.6	quarts		of	100	%	Alcohol II				<BR>\n" );
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document.write( "</TD></TR></TABLE>\n" );