document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=510000>Question 510000</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A radiator contains 13 quarts of fluid, 25% of which is antifreeze. How much fluid should be drained and replaced with pure antifreeze so that the new mixture is 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 #341699 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=341699\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A radiator contains 13 quarts of fluid, 25% of which is antifreeze.<BR>\n" );
document.write( " How much fluid should be drained and replaced with pure antifreeze so that the new mixture is 50% antifreeze?<BR>\n" );
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document.write( "Let x = amt of original antifreeze to be drained, and the amt of pure antifreeze to be added<BR>\n" );
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document.write( "a simple equation<BR>\n" );
document.write( ".25(13-x) + x = .50(13)<BR>\n" );
document.write( "3.25 - .25x + x = 6.5<BR>\n" );
document.write( "-.25x + 1x = 6.5 - 3.25<BR>\n" );
document.write( ".75x = 3.25<BR>\n" );
document.write( "x = 3.25/.75<BR>\n" );
document.write( "x = 4<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F3 ALIGN=MIDDLE  ALT=\"1%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" > quarts removed, then the same amt of pure antifreeze added </SPAN>\n" );
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