document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1159505>Question 1159505</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solving a system of equations word problems using matrices<BR>\n" );
document.write( "Suppose you invested $10,000, part at 6% annual interest and the rest at 9% annual<BR>\n" );
document.write( "interest. If you received a total of $684 in interest after one year, how much did you<BR>\n" );
document.write( "invest at each rate? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #782545 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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/cgi-bin/show-face.mpl?user=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=782545\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> not using a matrix unless one wants to make a table<BR>\n" );
document.write( "x at.         6% for        .06x<BR>\n" );
document.write( "10000-x at 9% for 900-.09x \r<BR>\n" );
document.write( "\n" );
document.write( ".06x+900-.09x=684<BR>\n" );
document.write( "-.03x=-216<BR>\n" );
document.write( "x=7200 @ 6% for $432<BR>\n" );
document.write( "10000-x=2800@9% for $252 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );