document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1185429>Question 1185429</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Could you please help me with this <BR>\n" );
document.write( "How many ounces of 1% antifreeze solution must be added to 100 oz of 40% antifreeze solution to obtain a 16% antifreeze solution?\r<BR>\n" );
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document.write( "Thank you so much<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 #816271 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13200)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=816271\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "You have three responses showing formal algebraic solutions to your problem.  All are valid....<br><BR>\n" );
document.write( "If a formal algebraic solution is not required, here is a quick and easy way to solve this kind of problem (if the numbers are \"nice\") informally.<br><BR>\n" );
document.write( "You are starting with a 40% antifreeze solution and adding a 1% antifreeze solution until the mixture is 16% antifreeze.<br><BR>\n" );
document.write( "To model the problem, picture starting at 40% on a number line and \"walking\" towards 1%, stopping when you reach 16%.<br><BR>\n" );
document.write( "In doing that, you have walked 24/39 = 8/13 of the total distance.  (40 to 1 is a difference of 39; 40 to 16 is a difference of 24; hence the fraction 24/39=8/13.)<br><BR>\n" );
document.write( "That means 8/13 of the mixture is the 1% antifreeze that you are adding.<br><BR>\n" );
document.write( "So the 100 ounces of 40% antifreeze you started with was 5/13 of the mixture; that means the 8/13 of the mixture that you added was 160 ounces.<br><BR>\n" );
document.write( "ANSWER: 160 ounces<br><BR>\n" );
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