document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=148933>Question 148933</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Walt made an extra $9000 last year from a part-time job.  he invested part of the money at 9% and the rest at 8%.  he made a total of $770 in interest.  How much was invested at 8%? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #109265 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=109265\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Walt made an extra $9000 last year from a part-time job. he invested part of the money at 9% and the rest at 8%. he made a total of $770 in interest. How much was invested at 8%?<BR>\n" );
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document.write( "Quantity Equation: x + y = 9000<BR>\n" );
document.write( "Interest Equation: 0.09x + 0.08y = 770<BR>\n" );
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document.write( "Modify the equations <BR>\n" );
document.write( "9x + 9y = 81000<BR>\n" );
document.write( "9x + 8y = 77000<BR>\n" );
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document.write( "Subtract 2nd from 1st to get:<BR>\n" );
document.write( "y = 4000 (Amt. invested at 8%)<BR>\n" );
document.write( "Since x+y = 9000, x = 5000 (Amt. invested at 9%)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "============================= </SPAN>\n" );
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