Posted by **marie ** on Tuesday, August 23, 2011 at 6:03pm.

Use the formula nCr to solve

Of the 100 people in the U.S. senate, 18 served on the Foreign relations Committee. How many ways are there to select Senate members for this committee (assuming party affiliation is not a factor in the selection)

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**Reiny**, Tuesday, August 23, 2011 at 6:10pm
What didn't you like about my answer to your same question?

http://www.jiskha.com/display.cgi?id=1314115058

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**marie s**, Tuesday, August 23, 2011 at 6:11pm
I didn't understand the answer?

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**Reiny**, Tuesday, August 23, 2011 at 6:14pm
C(n,r) is the same as _{n}C_{r}

and is defined as

n!/(r!(n-r)!)

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