document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=803692>Question 803692</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Betsy, a recent retiree, requires $6000 per year in extra income.  She has $50000 to invest and can invest in B-rated bonds paying 15% per year or in a certificate of deposit paying 7% per year.  How much money should be invested in each to realize exactly $6000 in interest per year? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #484445 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=484445\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Part I	15.00%		per annum	-------------	Amount invested =x		<BR>\n" );
document.write( "Part II	7.00%		per annum	------------	Amount invested = y		<BR>\n" );
document.write( "	50000						<BR>\n" );
document.write( "Interest-----	6000.00						<BR>\n" );
document.write( "							<BR>\n" );
document.write( "Part I	15.00%		per annum	---x			<BR>\n" );
document.write( "Part II	7.00%		per annum	---y			<BR>\n" );
document.write( "Total investment							<BR>\n" );
document.write( "x	+	1	y=	50000	-------------1		<BR>\n" );
document.write( "Interest on both investments							<BR>\n" );
document.write( "15.00%	x	+	7.00%	y=	6000		<BR>\n" );
document.write( "Multiply by		100					<BR>\n" );
document.write( "15	x	+	7	y=	600000.00	--------2	<BR>\n" );
document.write( "Multiply (1) by			-15				<BR>\n" );
document.write( "we get							<BR>\n" );
document.write( "-15	x	-15	y=	-750000.00			<BR>\n" );
document.write( "Add this to (2)							<BR>\n" );
document.write( "0	x	-8	y=	-150000			<BR>\n" );
document.write( "divide by		-8					<BR>\n" );
document.write( "			y	=	18750	 -	x)<BR>\n" );
document.write( "Part I	15.00%	$	31250				<BR>\n" );
document.write( "Part II	7.00%	$	18750				<BR>\n" );
document.write( "							<BR>\n" );
document.write( "CHECK							<BR>\n" );
document.write( "31250	---------	15.00%	-------	4687.50			<BR>\n" );
document.write( "18750	-------------	7.00%	-------	1312.50			<BR>\n" );
document.write( "Total			--------------------	6000.00			<BR>\n" );
document.write( "							<BR>\n" );
document.write( "m.ananth@hotmail.ca							<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );