Asked by Eric
Ann, Mara, Jenny, Tina, and Sue are sisters. Two of the five sisters must help their father at this business each Saturday. How many combinations of two sisters are possible?
Answers
Answered by
Blob
2 * 5 = 10
Answered by
Reiny
Blob's answer is not correct.
This is like choosing 2 of 5, which is
C(5,2) = 5!/(3!2!) = 20
This is like choosing 2 of 5, which is
C(5,2) = 5!/(3!2!) = 20
Answered by
Kyle
Ann, Mara, Jenny, Tina, and Sue are sisters. Two of the five sisters must help their father at his business each Saturday. How Many Combinations of two sisters are possible?
Answered by
Anonymous
20
Answered by
Zainab
5 sisters to fill 2 spots so 4. 5*4=20 then 20/2= 10
Answered by
Sinai
Five sisters times four name pairs for each girl, gives you twenty name combinations. 5×4= 20
Answered by
alsdfdfdca
mysis is bad
Answered by
Emy
Is 20
Answered by
Paul.
10. Keep in mind order doesn't matter so half of 20.
Answered by
Denis Palacios
12 combinations
Ann Mara
Ann Sue
Mara Jenny
Mara Tina
Mara Sue
Jenny Ann
Jenny Tina
Jenny Sue
Tina Ann
Tina Sue
Sue Ann
Sue Tina
Ann Mara
Ann Sue
Mara Jenny
Mara Tina
Mara Sue
Jenny Ann
Jenny Tina
Jenny Sue
Tina Ann
Tina Sue
Sue Ann
Sue Tina
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