document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=428341>Question 428341</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A 12- quart cooling system is checked and found to be filled with a solution of 40% antifreeze. The desired strength of the solution is 60% antifreeze. How many quarts of solution need to be drained and replaced with pure antifreeze to reach the desired strength? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #317957 by </B><A HREF=/tutors/aboutme.mpl?userid=jorel1380><B>jorel1380(3719)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jorel1380><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=jorel1380><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=317957\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 12x.6=7.2<BR>\n" );
document.write( "m+n=12<BR>\n" );
document.write( ".40m+n=7.2<BR>\n" );
document.write( "4m+10n=72<BR>\n" );
document.write( "4m+4n=48<BR>\n" );
document.write( "6n=24<BR>\n" );
document.write( "n=4<BR>\n" );
document.write( "You need to replace 4 qts. of 40% solution with pure anti-freeze for the mix.<BR>\n" );
document.write( "8x.4=3.2<BR>\n" );
document.write( "3.2+4=7.2<BR>\n" );
document.write( ".6x12=7.2.. </SPAN>\n" );
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