document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1008095>Question 1008095</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Last year, Ann had <BR>\n" );
document.write( "$20,000<BR>\n" );
document.write( " to invest. She invested some of it in an account that paid <BR>\n" );
document.write( "7%<BR>\n" );
document.write( " simple interest per year, and she invested the rest in an account that paid <BR>\n" );
document.write( "5%<BR>\n" );
document.write( " simple interest per year. After one year, she received a total of <BR>\n" );
document.write( "$1240<BR>\n" );
document.write( " in interest. How much did she invest in each account? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #623837 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=623837\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Last year, Ann had $20,000to invest. She invested some of it in an account that paid 7%simple interest per year, and she invested the rest in an account that paid 5%simple interest per year. After one year, she received a total of $1240<BR>\n" );
document.write( "in interest. How much did she invest in each account?<BR>\n" );
document.write( "----<BR>\n" );
document.write( "Using 2 equations:<BR>\n" );
document.write( "Quantity:: s + f = 20000 dollars<BR>\n" );
document.write( "Interest::7s +5f = 124000 dollars<BR>\n" );
document.write( "-----------------------------------<BR>\n" );
document.write( "Modify for elimination::<BR>\n" );
document.write( "7s + 7f = 7*20000<BR>\n" );
document.write( "7s + 5f = 124000<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "Subtract and solve for \"f\"::<BR>\n" );
document.write( "2f = 16000<BR>\n" );
document.write( "f = $8000 (amt. invested at 5%)<BR>\n" );
document.write( "------------<BR>\n" );
document.write( "Solve for \"s\"::<BR>\n" );
document.write( "s + f = 20000<BR>\n" );
document.write( "s = $12000 (amt. invested at 7%)<BR>\n" );
document.write( "------------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "--------------  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );