document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=430486>Question 430486</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the radiator in a certain make care needs to contain 40 liters of 40% antifreeze. the radiator now contains 40 liters of 20% antifreeze. how many liters of this solution must be drained and replaced with 100% antifreeze to get the desired strength? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #298966 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=298966\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the radiator in a certain make care needs to contain 40 liters of 40% antifreeze. the radiator now contains 40 liters of 20% antifreeze. how many liters of this solution must be drained and replaced with 100% antifreeze to get the desired strength?<BR>\n" );
document.write( "----------------------------<BR>\n" );
document.write( "Equation:<BR>\n" );
document.write( "alcohol - alcohol + alcohol = alcohol<BR>\n" );
document.write( "0.20*40 - 0.20x + 1.00x = 0.40*40<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Multiply thru by 100 to get:<BR>\n" );
document.write( "20*40 - 20x + 100x = 40*40<BR>\n" );
document.write( "80x = 20*40<BR>\n" );
document.write( "x = 10 liters (amt. of liquid to drain and replace_<BR>\n" );
document.write( "==========<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "========== </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );