document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=417338>Question 417338</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A family invested $10,000 at 8% annual interest. How much additional money must be invested at 9% to obtain a return of 8.2% on the total amount invested? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #292173 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=292173\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> percent		Principal $											<BR>\n" );
document.write( "8.00		10000											<BR>\n" );
document.write( "9.00		x											<BR>\n" );
document.write( "8.20		10000+x							<BR>\n" );
document.write( "8*10000	+9x=8.2*	(10000+x	)<BR>\n" );
document.write( "80000+9x	=8.2*10000+8.2x			<BR>\n" );
document.write( "80000+9x	=82000+8.2x					<BR>\n" );
document.write( "9x-8.2x=	82000-80000					<BR>\n" );
document.write( "0.8x=2000										<BR>\n" );
document.write( "/0.8												<BR>\n" );
document.write( "x=2500 @ 9.00%											<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );