document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=241591>Question 241591</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I need you help, I don't know how to change word problem in to augmented matrix form.\r<BR>\n" );
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document.write( "Investment analysis. A person has $5,000 to invet, part at 5% and the rest at 10%. How much should be invested at each rate to yield %400 per year? Set up a system of equations and solve using augmented matrix methods.\r<BR>\n" );
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document.write( "Thank very much. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #176959 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=176959\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .10x+.05(5,000-x)=400<BR>\n" );
document.write( ".10x+250-.05x=400<BR>\n" );
document.write( ".05x=400-250<BR>\n" );
document.write( ".05x=150<BR>\n" );
document.write( "x=150/.05<BR>\n" );
document.write( "x=3,000 invested @ 10%<BR>\n" );
document.write( "5,000-3,000=2,000 invested @ 5%<BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( ".10*3,000+.05*2,000=400<BR>\n" );
document.write( "300+100=400<BR>\n" );
document.write( "400=400 </SPAN>\n" );
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