document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1019096>Question 1019096</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Mardi received an inheritance of $70,000. She invested part at 12% and deposited the remainder in tax-free bonds at 9%. Her total annual income from the investments was $8100. Find the amount invested at12%.<BR>\n" );
document.write( "Recall I=PRT </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #635102 by </B><A HREF=/tutors/aboutme.mpl?userid=fractalier><B>fractalier(6550)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=fractalier><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=fractalier><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=635102\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let us call what she invested at 12%, x.<BR>\n" );
document.write( "The amount invested at 9% must then be $70000 - x.<BR>\n" );
document.write( "The setup looks like this<BR>\n" );
document.write( ".12x + .09(70000-x) = 8100<BR>\n" );
document.write( ".12x + 6300 - .09x = 8100<BR>\n" );
document.write( ".03x + 6300 = 8100<BR>\n" );
document.write( ".03x = 1800 and<BR>\n" );
document.write( "x = 1800/.03 = $60,000 invested at 12% </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );