document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=977836>Question 977836</A>: <I><SPAN STYLE=\"word-break: break-all;\"> PurePets dog food is 35% vegetables 65% meat and grain. NewTone dog food is 42% vegetables and 58% meat and grain. How much of each would be needed to produce 25 pounds of dog food that was 50% vegetable and 50% meat and grain? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #599381 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=599381\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> p, how much of PurePets<BR>\n" );
document.write( "n, how much of NewTone\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n%2Bp=25 ALIGN=MIDDLE  ALT=\"n%2Bp=25\"   DISABLED_style= \"max-width:90%; height:auto;\" > accounts for masses.\r<BR>\n" );
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document.write( "Accounting for vegetable:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%280.35p%2B0.42n%29%2F25=0.5 ALIGN=MIDDLE  ALT=\"%280.35p%2B0.42n%29%2F25=0.5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "or<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2835p%2B42n%29%2F25=50 ALIGN=MIDDLE  ALT=\"%2835p%2B42n%29%2F25=50\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Accounting for meat:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2865p%2B58n%29%2F25=50 ALIGN=MIDDLE  ALT=\"%2865p%2B58n%29%2F25=50\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Only two equations are needed for the system because only two unknown variables need resolution.  A full system is \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%2835p%2B42n=25%2A50%2C65p%2B58n=25%2A50%2Cn%2Bp=25%29 ALIGN=MIDDLE  ALT=\"system%2835p%2B42n=25%2A50%2C65p%2B58n=25%2A50%2Cn%2Bp=25%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "and then\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%2835p%2B42n=1250%2C65p%2B58n=1250%2Cn%2Bp=25%29 ALIGN=MIDDLE  ALT=\"system%2835p%2B42n=1250%2C65p%2B58n=1250%2Cn%2Bp=25%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "Best would be to omit either of the percentage equations, and use the mass equation to substitute for either n or p. </SPAN>\n" );
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