document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=694590>Question 694590</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Jack has $10,000 to invest in three accounts. He invests part of the money at 7% annual interest and twice that amount in an account paying 5.5% annual interest. The remaining money is invested at 4% annual interest. How much was invested in Each account if the total annual income from the three investments was $490?\r<BR>\n" );
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document.write( "I tried the question and got it wrong. I did:\r<BR>\n" );
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document.write( ".07x+5.5(2x)=490<BR>\n" );
document.write( ".07x+11x=490<BR>\n" );
document.write( "11.07x=490<BR>\n" );
document.write( "x=44.26\r<BR>\n" );
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document.write( "4y=10000<BR>\n" );
document.write( "y=2500\r<BR>\n" );
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document.write( "$44.26=7%<BR>\n" );
document.write( "$88.52=5.5%<BR>\n" );
document.write( "$2500=4% </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #428080 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=428080\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 7.5% ------------->x<BR>\n" );
document.write( "5.5%---------------->2x\r<BR>\n" );
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document.write( "Balance amount = (10000-(x+2x))\r<BR>\n" );
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document.write( "(10000-(x+2x))-----------> 4%\r<BR>\n" );
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document.write( "Sm up individual interests\r<BR>\n" );
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document.write( "7%x+5.5%*2x+(10000-(x+2x))*4%=49000\r<BR>\n" );
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document.write( "multiply equation by 100\r<BR>\n" );
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document.write( "7x+11x+40000-12x=49000\r<BR>\n" );
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document.write( "6x=9000<BR>\n" );
document.write( "x= 9000/6<BR>\n" );
document.write( "x= 1500 amount invested at 7%<BR>\n" );
document.write( "2x= 3000  amount at 5%<BR>\n" );
document.write( "Balance 5500  at 4%\r<BR>\n" );
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document.write( "CHECK\r<BR>\n" );
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document.write( "1500	7.00%	105<BR>\n" );
document.write( "3000	5.50%	165<BR>\n" );
document.write( "5500	4.00%	220<BR>\n" );
document.write( "		490\r<BR>\n" );
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document.write( " </SPAN>\n" );
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