document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=180131>Question 180131</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Here is the problem:\r<BR>\n" );
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document.write( "Walt made an extra $12,000 last year from a part-time job. He invested part of the money at 7% and the rest at 9%. He made a total of $970 in intrest. How much was invested at 7%?\r<BR>\n" );
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document.write( "I can honestly say that I am beyond stuck I don't even know where to start on this problem. Please Help!!! :-) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #134981 by </B><A HREF=/tutors/aboutme.mpl?userid=Mathtut><B>Mathtut(3670)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Mathtut><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=134981\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let x and y be amounts invested at 7% and 9% respectively<BR>\n" );
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document.write( "x + y = $12,000..................eq 1<BR>\n" );
document.write( "x * 0.07 + y * 0.09 = $970.......eq 2\r<BR>\n" );
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document.write( "rewrite eq 1 to x = $12,000 - y and plug that value into eq 2<BR>\n" );
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document.write( "($12,000 - y) * 0.07 + y * 0.09 = $970<BR>\n" );
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document.write( "$840 - 0.07y + 0.09y = $970<BR>\n" );
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document.write( "0.02y = $130\r<BR>\n" );
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document.write( "$<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28y=6500%29 ALIGN=MIDDLE  ALT=\"highlight%28y=6500%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >invested at 9%<BR>\n" );
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document.write( "$<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28x=12000-6500=5500%29 ALIGN=MIDDLE  ALT=\"highlight%28x=12000-6500=5500%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >invested at 7% </SPAN>\n" );
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