document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=75481>Question 75481</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0495105716/algebrahomeworkh>Elementary algebra</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Sally invested a certain sum of money at 9%, twice that sum at 10%, and three times that sum at 11%.  Her total yearly interest from all three investments was $310.  How much did she invest at each rate?\r<BR>\n" );
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document.write( "Thanks...can't seem to figure out three loans.<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #54198 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=54198\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let x equal the certain sum...she invested x at 9%, 2x at 10%, and 3x at 11%...so the total interest would be (x*.09)+(2x*.10)+(3x*.11)\r<BR>\n" );
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document.write( "this means that .62x=310...so x=500\r<BR>\n" );
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document.write( "Sally invested $500 at 9%, $1000 at 10%, and $1500 at 11% </SPAN>\n" );
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