document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=767876>Question 767876</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Mr. Smith invests $21,000 at 8% interest rate.  How much more must he invest at 9.5% interest to have an annual income of 9% of his total investment? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #467916 by </B><A HREF=/tutors/aboutme.mpl?userid=reviewermath><B>reviewermath(1029)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=reviewermath><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=reviewermath><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=467916\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Q:<BR>\n" );
document.write( "Mr. Smith invests $21,000 at 8% interest rate. How much more must he invest at 9.5% interest to have an annual income of 9% of his total investment?<BR>\n" );
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document.write( "Let x = amount Mr. Smith must invest at 9.5% interest<BR>\n" );
document.write( "0.08(21000) + 0.095x = 0.09(x + 21000)<BR>\n" );
document.write( "1680 + 0.095x = 0.09x + 1890<BR>\n" );
document.write( "0.095x - 0.09x = 1890 - 1680<BR>\n" );
document.write( "0.005x = 210<BR>\n" );
document.write( "x = 210/0.005 <BR>\n" );
document.write( "x = 42000<BR>\n" );
document.write( "Answer: $<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%2842000%29 ALIGN=MIDDLE  ALT=\"highlight%2842000%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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