document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=164236>Question 164236</A>: <I><SPAN STYLE=\"word-break: break-all;\"> aN INVESTMENT OF $1200 EARNS $96 EACH YEAR.  At the same rate, how much additional money must be invested to earn $128 each year? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #121008 by </B><A HREF=/tutors/aboutme.mpl?userid=aka042><B>aka042(26)</B></A><img src=\"/images/stars/stars-07.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=aka042><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=121008\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> We first must find the implied interest rate of a $1200 investment earning $96 each year.  This can be found as <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1200%2Ar+=+96 ALIGN=MIDDLE  ALT=\"1200%2Ar+=+96\"   DISABLED_style= \"max-width:90%; height:auto;\" > => <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r+=+96%2F1200+=+.08 ALIGN=MIDDLE  ALT=\"r+=+96%2F1200+=+.08\"   DISABLED_style= \"max-width:90%; height:auto;\" >.  Therefore we are investing the $1200 at a 8% interest rate.<BR>\n" );
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document.write( "Now we must use our newly found r to solve for a new investment balance.  We do this as follows: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=p%2A.08+=+128 ALIGN=MIDDLE  ALT=\"p%2A.08+=+128\"   DISABLED_style= \"max-width:90%; height:auto;\" > => <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=p+=+128%2F.08+=+1600 ALIGN=MIDDLE  ALT=\"p+=+128%2F.08+=+1600\"   DISABLED_style= \"max-width:90%; height:auto;\" >.  Therefore, we would need to invest $1600 to earn $128 each year. </SPAN>\n" );
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