document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=927813>Question 927813</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A lady has 10000$ to invest. She invests 4000$ at 6% and 3500$ at 9%. At what rate should she invest the remainder in order to have an yearly income of 800$ in? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #563278 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=563278\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A lady has 10000$ to invest. She invests 4000$ at 6% and 3500$ at 9%. At what rate should she invest the remainder in order to have an yearly income of 800$ in?<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "0.06*4000 + 0.09*3500 + x*2500 = 800<BR>\n" );
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document.write( "6*4000 + 9*3500 + x*250000 = 80000<BR>\n" );
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document.write( "24000 + 31500 + 250000x = 80000<BR>\n" );
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document.write( "240 + 315 + 2500x = 800<BR>\n" );
document.write( "2500x = 800-545<BR>\n" );
document.write( "2500x = 255<BR>\n" );
document.write( "x = 0.102<BR>\n" );
document.write( "x = 10.2%<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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