document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=183925>Question 183925</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A chemist must mix 8 liters of 40% acid solution with some 70% solution to obtain a 50% solution.  How much of the 70% solution should 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 #138032 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=138032\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .70x+.40*8=.50(8+x)<BR>\n" );
document.write( ".70x+3.2=4+.50x<BR>\n" );
document.write( ".70x-.50x=4-3.2<BR>\n" );
document.write( ".20x=.8 <BR>\n" );
document.write( "x=.8/.2<BR>\n" );
document.write( "x=4 liters of 70% acid is used.<BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( ".70*4+.4*8=.5(8+4)<BR>\n" );
document.write( "2.8+3.2=.5*12<BR>\n" );
document.write( "6=6\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );