document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=749501>Question 749501</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many gallons of pure water must be added to 160 gallons of 24% salt solution to make a 12% salt solution? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #456001 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39621)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=456001\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Those numbers make using any algebra unnecessary for just the description as stated, but this also means that your solution and answer are easy to check if you solve this using algebra.  Looking at those values, you know you would add 160 gallons of water to the 160 gallons of 24% salt solution to cut the concentration in half.\r<BR>\n" );
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document.write( "Look at the algebra:\r<BR>\n" );
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document.write( "Let w = gallons of water to add\r<BR>\n" );
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document.write( "The amount of resulting solution or mixture will be 160+w gallons.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=160%2A24%2F%28w%2B160%29=12 ALIGN=MIDDLE  ALT=\"160%2A24%2F%28w%2B160%29=12\"   DISABLED_style= \"max-width:90%; height:auto;\" >  and you should check the units to see that this made sense. Solve for w.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=12%28w%2B160%29=160%2A24 ALIGN=MIDDLE  ALT=\"12%28w%2B160%29=160%2A24\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=12w%2B12%2A160=160%2A24 ALIGN=MIDDLE  ALT=\"12w%2B12%2A160=160%2A24\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=12w=160%2A24-160%2A12 ALIGN=MIDDLE  ALT=\"12w=160%2A24-160%2A12\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=12w=160%2A%2824-12%29 ALIGN=MIDDLE  ALT=\"12w=160%2A%2824-12%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=12w=160%2A12 ALIGN=MIDDLE  ALT=\"12w=160%2A12\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Then dividing both sides by 12,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28w=160%29 ALIGN=MIDDLE  ALT=\"highlight%28w=160%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "DONE.\r<BR>\n" );
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