document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=348564>Question 348564</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The cooling system in a truck contains 4 gallons of coolant that is 30% antifreeze.  How much must be drained and replaced with 100% antifreeze to bring the coolant in the system to 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 #249173 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=249173\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let 100 % required be x gallons<BR>\n" );
document.write( "30 % 4 gallons<BR>\n" );
document.write( "Mixture 50%  x+4 gallons<BR>\n" );
document.write( "...<BR>\n" );
document.write( "x+0.3*4= 0.5(x+4)<BR>\n" );
document.write( "x+1.2=0.5x+2<BR>\n" );
document.write( "x-0.5x=2-1.2<BR>\n" );
document.write( "0.5x=0.8<BR>\n" );
document.write( "x= 0.8/0.5<BR>\n" );
document.write( "=1.6 gallons has to be drained and replaced </SPAN>\n" );
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