document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=217380>Question 217380</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Mary Auburn makes three investm,ents. The investment that pays 12% is twice the amount of the account that pays 9%. The amount inveted at 10% is $500 more than the amount invested at 9%. If the annual interest income is $1555, how much money is invested at each rate?\r<BR>\n" );
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document.write( "Please help!!\r<BR>\n" );
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document.write( "Thank you!! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #164030 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=164030\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  three investments. <BR>\n" );
document.write( "The investment that pays 12% is twice the amount of the account that pays 9%. <BR>\n" );
document.write( "The amount inveted at 10% is $500 more than the amount invested at 9%. <BR>\n" );
document.write( "If the annual interest income is $1555, how much money is invested at each rate?<BR>\n" );
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document.write( "Let x = amt invested at 9%<BR>\n" );
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document.write( "\"The investment that pays 12% is twice the amount of the account that pays 9%.\"<BR>\n" );
document.write( "therefore:<BR>\n" );
document.write( "2x = amt invested at 12%<BR>\n" );
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document.write( "\"The amount invested at 10% is $500 more than the amount invested at 9%.\"<BR>\n" );
document.write( "therefore:<BR>\n" );
document.write( "(x+500) = amt invested at 10%<BR>\n" );
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document.write( "If the annual interest income is $1555, how much money is invested at each rate?<BR>\n" );
document.write( ".09x + .12(2x) + .10(x+500) = 1555<BR>\n" );
document.write( ".09x + .24x + .10x + 50 = 1555<BR>\n" );
document.write( ".43x = 1555 - 50<BR>\n" );
document.write( ".43x = 1505 <BR>\n" );
document.write( "x = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1505%2F.43 ALIGN=MIDDLE  ALT=\"1505%2F.43\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "x = $3500 invested at 9%<BR>\n" );
document.write( "then<BR>\n" );
document.write( "2(2500) = $7000 invested at 12%<BR>\n" );
document.write( "and<BR>\n" );
document.write( "3500 + 500 = $4000 invested at 10%<BR>\n" );
document.write( ";<BR>\n" );
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document.write( "Is that true?<BR>\n" );
document.write( ".09(3500) + .12(7000) + .10(4000)<BR>\n" );
document.write( "315 + 840 + 400 = 1555 </SPAN>\n" );
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