document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=169202>Question 169202</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A tank contains 440 litres of a mixture which is 23.0% acid. How many litres of a mixture which is 12.0% acid must be added to get a mixture which is 14.5% acid. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #124768 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=124768\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .23*440+.12x=.145(440+x)<BR>\n" );
document.write( "101.2+.12x=63.8+.145x<BR>\n" );
document.write( ".12x-.145x=63.8-101.2<BR>\n" );
document.write( "-.025x=-37.4<BR>\n" );
document.write( "x=-37.4/-.025<BR>\n" );
document.write( "x=1,496 liters of 12% acid are used.<BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( ".23*440+.12*1,496=.145(440+1,496)<BR>\n" );
document.write( "101.2+179.52=.145*1,936<BR>\n" );
document.write( "280.72=280.72\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );