document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=648067>Question 648067</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A car radiator contains 10 liters of a 30% antifreeze solution. How many liters will have to be replaced with pure antifreeze if the resulting solution is to be 50% antifreeze? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #406544 by </B><A HREF=/tutors/aboutme.mpl?userid=nerdybill><B>nerdybill(7384)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nerdybill><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=nerdybill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=406544\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">     A car radiator contains 10 liters of a 30% antifreeze solution. How many liters will have to be replaced with pure antifreeze if the resulting solution is to be 50% antifreeze?<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Let x = amount (liters) replaced with pure antifreeze<BR>\n" );
document.write( "then<BR>\n" );
document.write( ".30(10-x) + x = .50(10)<BR>\n" );
document.write( "3-.30x + x = 5<BR>\n" );
document.write( "3+.70x = 5<BR>\n" );
document.write( ".70x = 2<BR>\n" );
document.write( "x = 2/.70<BR>\n" );
document.write( "x = 20/7 liters<BR>\n" );
document.write( "or, approximately<BR>\n" );
document.write( "x = 2.86 liters<BR>\n" );
document.write( " </SPAN>\n" );
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