document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=461319>Question 461319</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many gallons of a 70% acid solution must be mixed with 70 gallons of a 30% solution to obtain a solution that is 50% acid? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #316395 by </B><A HREF=/tutors/aboutme.mpl?userid=jorel1380><B>jorel1380(3719)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jorel1380><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=jorel1380><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=316395\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .7n+70(.30)=.5(n+70)<BR>\n" );
document.write( ".7n+21=.5n+35<BR>\n" );
document.write( ".2n=14<BR>\n" );
document.write( "n=14/.2=70<BR>\n" );
document.write( "You need 70 gallons of 70% solution to make the required mix..<BR>\n" );
document.write( "70(.7)+70(.3)=70<BR>\n" );
document.write( "140(.5)=70 </SPAN>\n" );
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