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 #651630 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=651630\">put this solution on YOUR website!</A><BR><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? <BR>\n" );
document.write( "Quantity:: s + e = 80,000<BR>\n" );
document.write( "Interest:: 0.06s + 0.18e = 0.15*80,000<BR>\n" );
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document.write( "Modify for elimination:<BR>\n" );
document.write( "6s + 6e = 6*80,000<BR>\n" );
document.write( "6s + 18e = 15*80,000<BR>\n" );
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document.write( "Subtract and solve for \"e\":<BR>\n" );
document.write( "12e = 9*80,000<BR>\n" );
document.write( "e = (3/4)(80,000)<BR>\n" );
document.write( "e = $60,000 (amt. to invest at 18%)<BR>\n" );
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document.write( "Solve for \"s\"<BR>\n" );
document.write( "s = 80,000 - e = 80,000-60,000 = $20,000 (amt. to invest at 6%)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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