document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=677729>Question 677729</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two investments were made totaling $10,500. Part of the $10,500 was invested at 9% and the remaining amount was invested at 12%. The annual interest from both investments was $1,140. 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 #421028 by </B><A HREF=/tutors/aboutme.mpl?userid=partha_ban><B>partha_ban(41)</B></A><img src=\"/images/stars/stars-07.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=partha_ban><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=partha_ban><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=421028\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let, x be the amount invested at 9% interest.<BR>\n" );
document.write( "(10500 - x) be the amount invested at 12% interest.<BR>\n" );
document.write( "From I = Prt, interest from first investment = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+%2A+%289%2F100%29+%2A+1 ALIGN=MIDDLE  ALT=\"x+%2A+%289%2F100%29+%2A+1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "= <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=9x%2F100 ALIGN=MIDDLE  ALT=\"9x%2F100\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Interest from 2nd investment = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2810500-x%29+%2A+%2812%2F100%29+%2A+1 ALIGN=MIDDLE  ALT=\"%2810500-x%29+%2A+%2812%2F100%29+%2A+1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "= <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2812%2A%2810500-x%29%29%2F100 ALIGN=MIDDLE  ALT=\"%2812%2A%2810500-x%29%29%2F100\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "By condition, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=9x%2F100+%2B+%2812%2A%2810500-x%29%29%2F100+=+1140 ALIGN=MIDDLE  ALT=\"9x%2F100+%2B+%2812%2A%2810500-x%29%29%2F100+=+1140\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%289x+%2B+126000+-+12x%29%2F100+=+1140 ALIGN=MIDDLE  ALT=\"%289x+%2B+126000+-+12x%29%2F100+=+1140\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "9x + 126000 - 12x = 1140 * 100<BR>\n" );
document.write( "9x - 12 x = 114000 - 126000<BR>\n" );
document.write( "-3x = -12000<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+%28-12000%29%2F%28-3%29 ALIGN=MIDDLE  ALT=\"x+=+%28-12000%29%2F%28-3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "x = 4000<BR>\n" );
document.write( "Therefore, $4,000 has been invested at 9% interest.<BR>\n" );
document.write( "$(10,500 - 4,000) = $6,500 has been invested at 12% interest. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );