document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1133840>Question 1133840</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A experiment calls for 40 gallons of a 70% saline solution. You only have a 80% saline solution and a 40% saline solution. Let x represent the amount of 80% saline solution and y represent the amount of 40% saline solution, what is the equation that describes the total amount of pure saline in the solution?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #751083 by </B><A HREF=/tutors/aboutme.mpl?userid=addingup><B>addingup(3677)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=addingup><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=addingup><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=751083\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 0.8x + 0.4(40-x) = 0.7(40)<BR>\n" );
document.write( "0.8x + 16 - 0.4x = 28<BR>\n" );
document.write( "0.4x = 12<BR>\n" );
document.write( "x = 30 You need 30 gallons of the 80% solution and 40-30 = 10 gallons of the 40% solution </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );