document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=257585>Question 257585</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The solution in a 7 liter radiator system is 35% antifreeze. How much of the solution must be drained and replaced by a 95% antifreeze solution to obtain a 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 #189500 by </B><A HREF=/tutors/aboutme.mpl?userid=dabanfield><B>dabanfield(803)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=dabanfield><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=189500\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The solution in a 7 liter radiator system is 35% antifreeze. How much of the solution must be drained and replaced by a 95% antifreeze solution to obtain a 50% antifreeze solution?\r<BR>\n" );
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document.write( "Let x be the amount to be replaced. Then we have:\r<BR>\n" );
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document.write( ".95*x + .35*(7-x) = .50*7 = 35\r<BR>\n" );
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document.write( "Solve for x. </SPAN>\n" );
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