document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1116093>Question 1116093</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Katie invested a total of $4000, part at 4% simple interest and part at 5% simple interest. At the end of 1 year, the investments had earned $174 interest. How much was invested 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 #730931 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=730931\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  Katie invested a total of $4000, part at 4% simple interest and part at 5% simple interest. At the end of 1 year, the investments had earned $174 interest. How much was invested at each rate? <BR>\n" );
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document.write( "Quantity:: r + v = 4000<BR>\n" );
document.write( "Interest:: 0.04r + 0.05v = 174<BR>\n" );
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document.write( "Modify for elimination::<BR>\n" );
document.write( "4r + 4v = 16000<BR>\n" );
document.write( "4r + 5v = 17400<BR>\n" );
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document.write( "Subtract and solve for \"v\"::<BR>\n" );
document.write( "v = $1400 (amt. invested at 5%)<BR>\n" );
document.write( "r = $3600 (amt. invested at 4%)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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