document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=106528>Question 106528</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me, Please.\r<BR>\n" );
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document.write( "A retired couple has $130,000 to invest to obtain annual income. They want some of it invested in safe Certificates of Deposit yielding 5%. The rest they want to invest in AA bonds yielding 10% per year. How much should they invest in each to realize exactly %10,500 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 #77525 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=77525\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A retired couple has $130,000 to invest to obtain annual income. They want some of it invested in safe Certificates of Deposit yielding 5%. The rest they want to invest in AA bonds yielding 10% per year. How much should they invest in each to realize exactly %10,500 per year?<BR>\n" );
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document.write( "Let amt. invested at 5% be \"x\" ; interest on this is 0.05x dollars<BR>\n" );
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document.write( "Amt. invested at 10% is \"130,000-x\"; interest is 0.10(130000-x)=13000-0.1x dollars<BR>\n" );
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document.write( "EQUATION:<BR>\n" );
document.write( "interest + interest = 10,500<BR>\n" );
document.write( "0.05x + 13000-0.10x = 10500<BR>\n" );
document.write( "-0.05x = -2500<BR>\n" );
document.write( "x = $50,000 (Amount they should invest in CD's at 5%)<BR>\n" );
document.write( "130000-x = $80,000 (Amount they should invest in AA bonds at 10%)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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