document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=900373>Question 900373</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many liters of a 50% acid solution must be mixed with a 20% acid solution to get 240 L of a 40% acid solution. <BR>\n" );
document.write( "How many liters of a 50% acid solution must be used?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #545916 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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/cgi-bin/show-face.mpl?user=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=545916\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a+b=240,<BR>\n" );
document.write( "0.5*a+0.2*b=0.4*240<BR>\n" );
document.write( "a=240-b<BR>\n" );
document.write( "0.5*(240-b)+0.2*b=96<BR>\n" );
document.write( "120-0.5b+0.2*b=96<BR>\n" );
document.write( "-0.3*b=-24<BR>\n" );
document.write( "b=80<BR>\n" );
document.write( "a=240-b<BR>\n" );
document.write( "a=160 at 50% b=80 at 20%<BR>\n" );
document.write( "check<BR>\n" );
document.write( "0.5*160+0.2*80=0.4*240<BR>\n" );
document.write( "80+16=96<BR>\n" );
document.write( "96=96<BR>\n" );
document.write( "ok\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );