document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=88287>Question 88287</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hello, I have tried to figure this out but with no success can you help.<BR>\n" );
document.write( "Bob invested $20,000, part at 14% and part at 13%.  If the total interest at the end of the year is $2,720, how much did he invest at 14%?\r<BR>\n" );
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document.write( "this is what I have done so far but it is not proofing out. What am I doing wrong<BR>\n" );
document.write( "0.14x+0.13(20,000-x)=2,720<BR>\n" );
document.write( "0.14x+2,800-.013x=2,720<BR>\n" );
document.write( "0.13x=2,720-2,800<BR>\n" );
document.write( ".013x=200<BR>\n" );
document.write( "X=200/0.13<BR>\n" );
document.write( "X=1538.46 invested @ 14%<BR>\n" );
document.write( "20,000-923.07 = 19,076.93 invested @ 13%<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #64129 by </B><A HREF=/tutors/aboutme.mpl?userid=rapaljer><B>rapaljer(4671)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rapaljer><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=rapaljer><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=64129\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You seem to have TWO errors in your second step!\r<BR>\n" );
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document.write( "0.14x+0.13(20,000-x)=2,720<BR>\n" );
document.write( "0.14x+2,800-.013x=2,720\r<BR>\n" );
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document.write( "Should be <BR>\n" );
document.write( "0.14x+0.13(20,000-x)=2,720<BR>\n" );
document.write( "0.14x+2,600-0.13x=2,720\r<BR>\n" );
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document.write( "Continuing:<BR>\n" );
document.write( "0.01x = 120<BR>\n" );
document.write( "x= $12000<BR>\n" );
document.write( "20000-x = $8000\r<BR>\n" );
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document.write( "Check:  .14(12000)+.13(8000)=2720\r<BR>\n" );
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document.write( "R^2<BR>\n" );
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