document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=54711>Question 54711</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 #36988 by </B><A HREF=/tutors/aboutme.mpl?userid=tutorcecilia><B>tutorcecilia(2152)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=tutorcecilia><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=tutorcecilia><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=36988\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Ax+By=C [Use the standard equation of a line]<BR>\n" );
document.write( "(14%)(x)+(12%)($20,000-x)=$2,720<BR>\n" );
document.write( ".14x+.12(20,000-x)=2720 <BR>\n" );
document.write( ".14x+2400-.12x=2720 [Solve for x]<BR>\n" );
document.write( ".14x-.12x=2720-2400<BR>\n" );
document.write( ".02x=320<BR>\n" );
document.write( "x=$16,000<BR>\n" );
document.write( ".<BR>\n" );
document.write( "14%of $16,000 = (.14)(16,000)=$2,240<BR>\n" );
document.write( "12% of ($20,000-$16,000)=.12(20,000-16,000)=$480<BR>\n" );
document.write( "So, $2,240+$480=$2,720 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );