document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=110304>Question 110304</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I really need help with this.\r<BR>\n" );
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document.write( "The radiatr of a jeep that has a capacity of 8 gallons is full with a solution of 10% antifreeze. How much must be drained and replaced by pure antifreeze to obtain a 25% solution? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #80384 by </B><A HREF=/tutors/aboutme.mpl?userid=wgunther><B>wgunther(43)</B></A><img src=\"/images/stars/stars-07.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=wgunther><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=80384\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> f(x)=.8-.1x, where x is the amount drained, so f is the amount of an  anti-freeze stil in the car. We're assuming that this mixtured is \"well mixed\" of course. \r<BR>\n" );
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document.write( "The amount of fluid drained is equal to the amount of antifreeze we are adding. So .8-.1x+x= the amount of antifreeze in the car after refilling it. We want this number, divided by 8 to be .25. So. <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=f%28x%29=.8-.1x%2C+where+x+is+the+amount+drained%2C+so+f+is+the+amount+of+an++anti-freeze+stil+in+the+car.+We%27re+assuming+that+this+mixtured+is+%22well+mixed%22+of+course.+%0D%0A%0D%0AThe+amount+of+fluid+drained+is+equal+to+the+amount+of+antifreeze+we+are+adding.+So+.8-.1x%2Bx=+the+amount+of+antifreeze+in+the+car+after+refilling+it.+We+want+this+number%2C+divided+by+8+to+be+.25.+So.+ ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >.8+.9x=8(.25)), which is 1.333... </SPAN>\n" );
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