document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=940581>Question 940581</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me in my homework. I think this is invalid yet our teacher gave it to us.\r<BR>\n" );
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document.write( "Grace invested $200000 for one year. Some invested at 10% rate and the remaining at 12% rate. If the accounts earned $4500, how much was invested at each rate?<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 #573283 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39632)</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=573283\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The description runs like a two part mixture problem but is an investment problem instead.\r<BR>\n" );
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document.write( "u = how much at 10%<BR>\n" );
document.write( "v = how much at 12%\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%280.10u%2B0.12v=4500%2Cu%2Bv=200000%29 ALIGN=MIDDLE  ALT=\"system%280.10u%2B0.12v=4500%2Cu%2Bv=200000%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Two linear equations in two unknown variables, u and v. </SPAN>\n" );
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