document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1036937>Question 1036937</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Paul has $80,000 to invest. His intent is to earn 15% interest on his investment. He can invest part of his money at 6% interest and part at 18% interest. How much does Paul need to invest in each option to make a total 15% return on his $80,000? \r<BR>\n" );
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document.write( "6% interest      $  \r<BR>\n" );
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document.write( "  <BR>\n" );
document.write( "18% interest     $<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 #651631 by </B><A HREF=/tutors/aboutme.mpl?userid=addingup><B>addingup(3677)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=addingup><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=addingup><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=651631\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let's call the amount to invest at 6% x. Then, the amount at 18% will be 80,000-x:<BR>\n" );
document.write( "0.06x+0.18(80,000-x) = 0.15(80,000)<BR>\n" );
document.write( "0.06x+14,400-0.18x = 12,000<BR>\n" );
document.write( "-0.12x = -2,400 Divide both sides by 0.12 and remember -/- = +<BR>\n" );
document.write( "x = 20,000 this is the amount at 6%. And the amount at 18%:<BR>\n" );
document.write( "80,000-20,000 = 60,000 is at 18% </SPAN>\n" );
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