document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=899506>Question 899506</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many liters of pure water should be mixed with a 9-L solution of 90% acid to produce a mixture that is 50% water? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #545503 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=545503\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1*x+0.1*9=0.5(9+x)<BR>\n" );
document.write( "1*x+0.9=4.5+0.5x<BR>\n" );
document.write( "1x-0.5x=4.5-0.9<BR>\n" );
document.write( "0.5x=3.6<BR>\n" );
document.write( "x=7.2<BR>\n" );
document.write( "check<BR>\n" );
document.write( "1*7.2+0.1*9=0.5(9+7.2)<BR>\n" );
document.write( "7.2+0.9=0.5(16.2)<BR>\n" );
document.write( "8.1=8.1<BR>\n" );
document.write( "ok<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );