document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=113986>Question 113986</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 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%? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #82944 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley71><B>checkley71(8403)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley71><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=82944\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .14X+.13(20,000-X)=2,720<BR>\n" );
document.write( ".14X+2600-.13X=2,720<BR>\n" );
document.write( ".01X=2,720-2,600<BR>\n" );
document.write( ".01X=120<BR>\n" );
document.write( "X=120/.01<BR>\n" );
document.write( "X=$12,000 IS THE AMOUNT INVESTED @ 14%.<BR>\n" );
document.write( "PROOF:<BR>\n" );
document.write( ".14*12,000+.13(20,000-12,000)=2,720<BR>\n" );
document.write( "1,680+.13*8,000=2,720<BR>\n" );
document.write( "1,680+1,040=2,720<BR>\n" );
document.write( "2,720=2,720 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );