document.write( "Question 1179571: A class contains 9 men and 3 women:
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\n" ); document.write( "b)How many of them contain at least 2 women? ?? \n" ); document.write( "

Algebra.Com's Answer #809151 by ikleyn(52790) $\"\"$ $\"About$

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\n" ); document.write( "A class contains 9 men and 3 women:
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document.write( "(a)   = 495.                                            ANSWER\r\n" );
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document.write( "(b)   +  = 3*36 + 1*9 = 108 + 9 = 117.      ANSWER\r\n" );
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\n" ); document.write( "\n" ); document.write( "In the post by @greenestamps, the formula for part (b) has an error.\r
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\n" ); document.write( "\n" ); document.write( "It is why I came to correct it.\r
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\n" ); document.write( "\n" ); document.write( "This problem is on COMBINATIONS.\r
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\n" ); document.write( "\n" ); document.write( "It combines your knowledge on combinations and the Fundamental counting principle.\r
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\n" ); document.write( "\n" ); document.write( "To learn the subject, see these introductory lessons\r
\n" ); document.write( "\n" ); document.write( "    - Introduction to Combinations\r
\n" ); document.write( "\n" ); document.write( "    - PROOF of the formula on the number of Combinations\r
\n" ); document.write( "\n" ); document.write( "    - Problems on Combinations\r
\n" ); document.write( "\n" ); document.write( "    - Fundamental counting principle problems \r
\n" ); document.write( "\n" ); document.write( "    - OVERVIEW of lessons on Permutations and Combinations\r
\n" ); document.write( "\n" ); document.write( "in this site.\r
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\n" ); document.write( "\n" ); document.write( "Also, you have this free of charge online textbook in ALGEBRA-II in this site\r
\n" ); document.write( "\n" ); document.write( "    - ALGEBRA-II - YOUR ONLINE TEXTBOOK.\r
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\n" ); document.write( "\n" ); document.write( "The referred lessons are the part of this online textbook under the topic \"Combinatorics: Combinations and permutations\". \r
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\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Save the link to this textbook together with its description\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Free of charge online textbook in ALGEBRA-II
\n" ); document.write( "https://www.algebra.com/algebra/homework/complex/ALGEBRA-II-YOUR-ONLINE-TEXTBOOK.lesson\r
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\n" ); document.write( "\n" ); document.write( "into your archive and use when it is needed.\r
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