Question

ANSWER how many basketball games are played in a 10-team league if each team plays all other team TWICE

Answer 1

Hi, I can see that you are a new member here at OpenStudy so, I would
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Answer 2

180?

Answer 3

someone should confirm that for me

Answer 4

ANSWER how many basketball games are played in a 10-team league if each team plays all other team TWICE

Answer 5

@AravindG, are you trying to scare this person off? Maybe they are just having problems with some homework.

Answer 6

PLZ

Answer 7

Nope I was welcoming the user and also making sure that he.she gets to know how the site works . The non cheating policy is an important feature of our site @kashbmaryd

Answer 8

Deenal answer

Answer 9

ANSWER how many basketball games are played in a 10-team league if each team plays all other team TWICE

Answer 10

Understood. Just seems a little pushy to hit him/her with the non-cheating policy on the first question. But anyway, I still like the site @ AravindG

Answer 11

it should be 90!

Answer 12

\[10C2*2\]

Answer 13

The number of combinations of the 10 teams is 10C2 which is\[\frac{10!}{2!8!}=\frac{10\times 9}{2}=45\]
Therefore there would be 45 games in the first round.

Answer 14

it should be 90 games!!

Answer 15

And another 45 games in the second round.

Answer 16

what is the answer @JOJP ?

Answer 17

making 45 + 45 = 90 games.

Answer 18

yes!!

Answer 19

see choosing any 2 teams to play a match from the 10 teams is 10C2 OK!!
now each team is playing 2 mathces so we have 10C2*2

Answer 20

which is equal to 90

Answer 21

ok thanks alooot all

Answer 22

Seven seats are positioned in a row at a movie theater. Rebecca, Wayne, Heather,
Garrett, Mark, Ashley, and Alice want to sit together in this row.
a) How many different ways can they be arranged?
b)How many different ways can they be arranged if Rebecca sits in the second seat?
c) How many different ways can they be arranged if Garrett sits in the left aisle seat
and Mark sits in the right aisle seat?