document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=902532>Question 902532</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A hospital staff mixed a 75% disinfectant solution with a 25% disinfectant solution.  How many liters of each were used to make 20L of a 40% disinfectant solution?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #547301 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=547301\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a+b=20,<BR>\n" );
document.write( "0.75*a+0.25*b=0.4*20<BR>\n" );
document.write( "a=20-b<BR>\n" );
document.write( "0.75*(20-b)+0.25*b=8<BR>\n" );
document.write( "15-0.75b+0.25*b=8<BR>\n" );
document.write( "-0.5*b=-7<BR>\n" );
document.write( "b=14<BR>\n" );
document.write( "a=20-b<BR>\n" );
document.write( "a=6 liter at 75% b=14 liter at 25%<BR>\n" );
document.write( "check<BR>\n" );
document.write( "0.75*6+0.25*14=0.4*20<BR>\n" );
document.write( "4.5+3.5=8<BR>\n" );
document.write( "8=8<BR>\n" );
document.write( "ok<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );