document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=12601>Question 12601</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many gallons of pure antifreeze must be added to 20 gallons of 25% antifreeze to get a mixture that is 40% antifreeze </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #6394 by </B><A HREF=/tutors/aboutme.mpl?userid=rapaljer><B>rapaljer(4671)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rapaljer><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=rapaljer><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=6394\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let x = amt of pure antifreeze to be added\r<BR>\n" );
document.write( "\n" );
document.write( "You are adding this to 20 gallons of 25% and you will end up a total mixture of x+ 20 at 40%.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "The equation is <BR>\n" );
document.write( ".25(20) + x = .40(x+20)<BR>\n" );
document.write( "5 + 1.00x = .40x + 8<BR>\n" );
document.write( "1.00x - .40x = 8 - 5<BR>\n" );
document.write( ".60x = 3\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+3%2F.6+=+30%2F6+=+5+gallons ALIGN=MIDDLE  ALT=\"x+=+3%2F.6+=+30%2F6+=+5+gallons\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Does it check?? (It is VERY late in Florida, here!  I don't guarantee my work or my spelling at this hour!!}}}\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "R^2 at SCC<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );