document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=568488>Question 568488</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many liters of pure antifreeze (100% solution) must be added to 30 liters of a 15% antifreeze solution to get a 40% 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 #366972 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=366972\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> How many liters of pure antifreeze (100% solution) must be added to 30 liters of a 15% antifreeze solution to get a 40% antifreeze solution?<BR>\n" );
document.write( "---<BR>\n" );
document.write( "alcohol + alcohol = alcohol<BR>\n" );
document.write( "----<BR>\n" );
document.write( "1*x + 0.15*30 = 0.40(x+30)<BR>\n" );
document.write( "----<BR>\n" );
document.write( "Multiply thru by 100 to get:<BR>\n" );
document.write( "100x + 15*30 = 40*x + 40*30<BR>\n" );
document.write( "60x = 25*30<BR>\n" );
document.write( "x = (1/2)25 = 12.5 liters (amt. of pure antifreeze needed)<BR>\n" );
document.write( "============================================================<BR>\n" );
document.write( "cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );