There are 4845 ways to choose 4 people out of 20
20 choose 4 = 20! / (4!16!)
There are 16C6 = 16*15*14*13*12*11/(6*5*4*3*2*1) possible committees. That is, 8,008 of them.
72
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I think there are 88 different combinations of coins that can make up 66 cents.
The number of distinct, different 4-person committees that can be formedfrom a group of 32 people is(32!/28!) / (4!) = (32 x 31 x 30 x 29) / (4 x 3 x 2 x 1) = 35,960(but obviously, no more than four at a time.)
120
Any combination of 5 students leaves one student out. Since there are 5 possible students to leave out, the number of combinations of all but one student is 5.
There are 16C6 = 16*15*14*13*12*11/(6*5*4*3*2*1) possible committees. That is, 8,008 of them.
Since the order doesn't matter, this is a combination problem.25C3 = 25*24*23/3*2*1 = 25*4*23 = 2300 committees.
They can't be split evenly into groups of six. Sixteen people can split into two groups of six, and there will be four people left over.
(9 x 8 x 7 x 6)/(4 x 3 x 2 x 1) = 126committees.
72
9 combinations - the key person and one of the remaining nine.
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There is no set number. It could be none at all.
Committees are formed to spread needed work over more than one person, and to take advantage of the abilities of the several people who serve on any particular committee. Solving difficult problems is more effectively accomplished by well functioning committees or teams. this is my answer: I think communities are formed by people always needing more and more work because teen are coming out of school and either looking for a job have a job already or u just turned the age to have a job and you want to start saving up for a brand new car or maybe even get a house on your very own even if your parents do want to help you but maybe you would not like their help that they maybe offering or even some people just kick them out on the streets when they are eighteen. this is why i think comunities are formed everyday. thanks lovebug45
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