document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=286674>Question 286674</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Susan purchased some municipal bonds yielding 9% annually and some certificates of deposit yielding 10% annually. If Susan’s investment amounts to $17,000 and the annual income is $1640, how much money is invested in bonds and how much is invested in certificates of deposit? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #207913 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=207913\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Susan purchased some municipal bonds yielding 9% annually and some certificates of deposit yielding 10% annually. If Susan’s investment amounts to $17,000 and the annual income is $1640, how much money is invested in bonds and how much is invested in certificates of deposit?<BR>\n" );
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document.write( "Equations:<BR>\n" );
document.write( "Value: b + c = 17000<BR>\n" );
document.write( "Interest: 0.09b + 0.10c = 1640<BR>\n" );
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document.write( "Multiply thru 1st Eq. by 9<BR>\n" );
document.write( "Multiply thru 2nd Eq by 100<BR>\n" );
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document.write( "9b + 9c = 9*17000<BR>\n" );
document.write( "9b + 10c = 164000<BR>\n" );
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document.write( "Subtract 1st from 2nd and solve for \"c\":<BR>\n" );
document.write( "c = $11,000 (Invested in certificates)<BR>\n" );
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document.write( "Since b + c = 17000, b = $6000 (Invested in bonds)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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