document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=765298>Question 765298</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A 5 gallon radiator containing a mixture of water and antifreeze solution. When tested , it was found to have only 40% antifreeze. How much must be drained out so that the radiator will then contain the desire 50% antifreeze solution. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #466065 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39620)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=466065\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The question really should be changed.  How about this way:\r<BR>\n" );
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document.write( "A 5 gallon radiator containing a mixture of water and antifreeze solution. When tested , it was found to have only 40% antifreeze. How much must be drained out  AND REPLACED WITH PURE ANTIFREEZE so that the radiator will then contain 5 GALLONS OF THE desired 50% antifreeze solution?\r<BR>\n" );
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document.write( "Let v = the amount of solution to remove and then replaced with pure antifreeze\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%285%2A40-v%2A40%2Bv%2A100%29%2F5=50 ALIGN=MIDDLE  ALT=\"%285%2A40-v%2A40%2Bv%2A100%29%2F5=50\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Note that the desired final volume must be the same as the starting volume in the five-gallon tank.\r<BR>\n" );
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document.write( "Arithmetic steps to solving:<BR>\n" );
document.write( "(5*40+(100-40)v)/5=50<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5%2A40%2B60v=5%2A50 ALIGN=MIDDLE  ALT=\"5%2A40%2B60v=5%2A50\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=60v=5%2A50-5%2A40 ALIGN=MIDDLE  ALT=\"60v=5%2A50-5%2A40\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=60v=50 ALIGN=MIDDLE  ALT=\"60v=50\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28v=5%2F6%29 ALIGN=MIDDLE  ALT=\"highlight%28v=5%2F6%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, meaning, take out five-sixths of a gallon and replace with 100% antifreeze. </SPAN>\n" );
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