document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=188540>Question 188540</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Sam had 9 sweaters.  If he wore one a day for a week, how many permutations are possible?\r<BR>\n" );
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document.write( "My math teacher gave me a sheet of permutations to answer at the end of class and without previous knowledge I am having a very difficult time with these questions.  I am asking the one that seems the easiest so that I can try to figure out the remaining.  My answer is 36 but I'm not sure if its correct or how I should have gotten there.\r<BR>\n" );
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document.write( "Thank you. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #141369 by </B><A HREF=/tutors/aboutme.mpl?userid=edjones><B>edjones(8007)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=edjones><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=edjones><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=141369\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> With permutations the order in which the objects are arrainged is important.<BR>\n" );
document.write( "nPr Arraingement of r objects selected from a total of n objects.<BR>\n" );
document.write( "=9P7<BR>\n" );
document.write( "=n(n-1)(n-2)*...*(n-r+1)<BR>\n" );
document.write( "=n!/(n-r)! faster than the line above.<BR>\n" );
document.write( "=9!/(9-7)!<BR>\n" );
document.write( "=9!/2!<BR>\n" );
document.write( "=9*8*7*6*5*4*3<BR>\n" );
document.write( "=181440 answer.<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Ed<BR>\n" );
document.write( " </SPAN>\n" );
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