document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=230536>Question 230536</A>: <I><SPAN STYLE=\"word-break: break-all;\"> please help me i been working on this problem for 1 hour and i cant get the solution.\r<BR>\n" );
document.write( "\n" );
document.write( "david invested 10,000, part at 4% and part at 5% simple inerest for a period of 1 year. How much was invested in each account if the intererest earned in the 5% account was 320 greater than the interest earn in the 4% account. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #170707 by </B><A HREF=/tutors/aboutme.mpl?userid=nerdybill><B>nerdybill(7384)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nerdybill><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=nerdybill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=170707\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> david invested 10,000, part at 4% and part at 5% simple inerest for a period of 1 year. How much was invested in each account if the intererest earned in the 5% account was 320 greater than the interest earn in the 4% account.<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Let x = amount invested at 4%<BR>\n" );
document.write( "then<BR>\n" );
document.write( "10000-x = amount invested at 5%<BR>\n" );
document.write( ".<BR>\n" );
document.write( ".05(10000-x) = .04x + 320<BR>\n" );
document.write( "500-.05x = .04x + 320<BR>\n" );
document.write( "500 = .09x + 320<BR>\n" );
document.write( "180 = .09x<BR>\n" );
document.write( "2000 = x (amount invested at 4%)<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Amount invested at 5%:<BR>\n" );
document.write( "10000-x = 10000-2000 = 8000<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );