document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1118314>Question 1118314</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Leslie has 7 books. There is enough space on a shelf for 3 books. In how many ways can 3 of the 7 books be arranged on the shelf?\r<BR>\n" );
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document.write( "Out of the 12 girls who tried out for the softball team, 10 will be chosen for the team. Find the number of different 10-person teams. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #733586 by </B><A HREF=/tutors/aboutme.mpl?userid=rothauserc><B>rothauserc(4718)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rothauserc><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=rothauserc><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=733586\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> use the combination formula nCk, n items take k at a time<BR>\n" );
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document.write( "(1) 7C3 = 7! / (3! * (7-3)!) = 35 ways<BR>\n" );
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document.write( "(2) 12C10 = 12! / (10! * (12-10)!) = 66 ways<BR>\n" );
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