document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=993323>Question 993323</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Adding 25 gallons of acid to a mixture, makes it 80% Acid solution, while adding 25 gallons of water makes it 60% Acid solution. What is the original acid percentage of the mixture? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #612590 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</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=612590\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You are not given the amount of original acid mixture, so give this a variable for its volume.<BR>\n" );
document.write( "v, the initial volume in gallons of the starting mixture of unknown percent concentration.\r<BR>\n" );
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document.write( "Let p be the percent concentration of your original acid mixture.<BR>\n" );
document.write( "Additionally, you are forced to assume that your acid to add in pure form, the 100%, is a liquid.\r<BR>\n" );
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document.write( "ADDING 25 GALLONS<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2825%2A100%2Bv%2Ap%29%2F%28v%2B25%29=80 ALIGN=MIDDLE  ALT=\"%2825%2A100%2Bv%2Ap%29%2F%28v%2B25%29=80\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "ADDING 25 GALLONS OF WATER<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2825%2A0%2Bv%2Ap%29%2F%28v%2B25%29=60 ALIGN=MIDDLE  ALT=\"%2825%2A0%2Bv%2Ap%29%2F%28v%2B25%29=60\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "The system of equations slightly reworked is<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%28vp%2B2500=80%28v%2B25%29%2Cvp=60%28v%2B25%29%29 ALIGN=MIDDLE  ALT=\"system%28vp%2B2500=80%28v%2B25%29%2Cvp=60%28v%2B25%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "STEPS SOLVING THE SYSTEM<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=vp%2B2500=80v%2B8%2A25%2A10 ALIGN=MIDDLE  ALT=\"vp%2B2500=80v%2B8%2A25%2A10\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=vp%2B2500=80v%2B2000 ALIGN=MIDDLE  ALT=\"vp%2B2500=80v%2B2000\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=vp%2B500=80v ALIGN=MIDDLE  ALT=\"vp%2B500=80v\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=vp-80v=-500 ALIGN=MIDDLE  ALT=\"vp-80v=-500\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=80v-vp=500 ALIGN=MIDDLE  ALT=\"80v-vp=500\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=v%2880-p%29=500 ALIGN=MIDDLE  ALT=\"v%2880-p%29=500\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%28v=500%2F%2880-p%29%29 ALIGN=MIDDLE  ALT=\"highlight_green%28v=500%2F%2880-p%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "-<BR>\n" );
document.write( "Next use the simpler, dilution equation.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28500%2F%2880-p%29%29p=60%28%28500%2F%2880-p%29%29%2B25%29 ALIGN=MIDDLE  ALT=\"%28500%2F%2880-p%29%29p=60%28%28500%2F%2880-p%29%29%2B25%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=500p%2F%2880-p%29=30000%2F%2880-p%29%2B1500 ALIGN=MIDDLE  ALT=\"500p%2F%2880-p%29=30000%2F%2880-p%29%2B1500\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5p%2F%2880-p%29=300%2F%2880-p%29%2B15 ALIGN=MIDDLE  ALT=\"5p%2F%2880-p%29=300%2F%2880-p%29%2B15\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=p%2F%2880-p%29=60%2F%2880-p%29%2B3 ALIGN=MIDDLE  ALT=\"p%2F%2880-p%29=60%2F%2880-p%29%2B3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=p=60%2B3%2880-p%29 ALIGN=MIDDLE  ALT=\"p=60%2B3%2880-p%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=p=60%2B240-3p ALIGN=MIDDLE  ALT=\"p=60%2B240-3p\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4p=60%2B240 ALIGN=MIDDLE  ALT=\"4p=60%2B240\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4p=300 ALIGN=MIDDLE  ALT=\"4p=300\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=p=300%2F4 ALIGN=MIDDLE  ALT=\"p=300%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28highlight%28p=75%29%29 ALIGN=MIDDLE  ALT=\"highlight%28highlight%28p=75%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( " </SPAN>\n" );
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