document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1010109>Question 1010109</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What quantity of 20% acid solution must be mixed with 360 mL of 90% acid solution to produce 40% acid solution?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #625574 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=625574\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x ml 0.20 acid<BR>\n" );
document.write( "360 ml 0.90 acid<BR>\n" );
document.write( "they equal (360+x)0.40 acid<BR>\n" );
document.write( "0.2x+324=144_0.40x<BR>\n" );
document.write( "-0.2x=-180<BR>\n" );
document.write( "x=900 ml of 20% acid<BR>\n" );
document.write( "This should be a 5/2 ratio, since 40% is 2/5 of the way from 20% to 90%<BR>\n" );
document.write( "900 is 5/2 360.\r<BR>\n" );
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