document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=57579>Question 57579</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0534490247/algebrahomeworkh>Elementary and Intermediate Algebra</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> To Whomever can assist... Thank you!\r<BR>\n" );
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document.write( "A tank contains 50 gallons of a 40% solution of antifreeze.  How much solution needs to be drained out and replaced with pure antifreeze to obtain a 50% solution? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #39300 by </B><A HREF=/tutors/aboutme.mpl?userid=funmath><B>funmath(2933)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=funmath><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=39300\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A tank contains 50 gallons of a 40% solution of antifreeze.  How much solution needs to be drained out and replaced with pure antifreeze to obtain a 50% solution?<BR>\n" );
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document.write( "Let the unknown amount of solution be: x<BR>\n" );
document.write( "You start out with: .40(50) <BR>\n" );
document.write( "you take out: .40x<BR>\n" );
document.write( "You put in: 1.00x<BR>\n" );
document.write( "Then you get: .50(50)<BR>\n" );
document.write( "The equation to solve is:<BR>\n" );
document.write( ".40(50)-.40x+1.00x=.50(50)<BR>\n" );
document.write( "20-.40x+1.00x=25<BR>\n" );
document.write( "20+.60x=25<BR>\n" );
document.write( "20-20+.60x=25-20<BR>\n" );
document.write( ".60x=5<BR>\n" );
document.write( ".60x/.60=5/.60<BR>\n" );
document.write( "x=8.33 gal<BR>\n" );
document.write( "Happy Calculating!!! </SPAN>\n" );
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