document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=278196>Question 278196</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many gallons of 40 percent alcohol solution must be mixed with 70 percent solution to obtain 30 gallons of a 52 percent alcohol solution?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #202506 by </B><A HREF=/tutors/aboutme.mpl?userid=Grinnell><B>Grinnell(63)</B></A><img src=\"/images/stars/stars-08.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Grinnell><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=202506\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Since you will end up with 30 gallons, let 30-x represent the number of gallons of 40% solution AND let x represent the number of gallons at 70% solution. We then have: .40(30-x)+.70x=.52(30)<BR>\n" );
document.write( "Just multiply by 100 to remove that ugly old decimal to make life easier (for now), ok? Then off to the races!<BR>\n" );
document.write( "1200-40x+70x=1560<BR>\n" );
document.write( "30x=360<BR>\n" );
document.write( "x=12<BR>\n" );
document.write( ".40(18)+.70(12)=.52(30) (Yes, hello to Mr. Decimal again, to check our work!)<BR>\n" );
document.write( "7.2+8.4=15.6  It checks out!\r<BR>\n" );
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document.write( "The answer is 18 gallons. Does this make sense to you? Am I clear? Let me hear from you, OK? </SPAN>\n" );
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