document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=92034>Question 92034</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I need the equation for figuring out how many mixtures (combinations) of letters can come from: ABCDE, then ABCDEF, then ABCDEFG, etc. (ex. for the first one ABCDE there are the following mixtures: AB, AC, AD, AE, AF, ABC, ABD, ABE, ABDE, etc. but an equation would help me solve this much faster. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #66858 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=66858\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> nCr = n!/[(n-r)!r!]<BR>\n" );
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document.write( "Example: for ABCDE<BR>\n" );
document.write( "The # of combinations of 3 is 5C3 = 5!/[2!*3!] = [5*4*3/1*2*3] = 10<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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