Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
Safari321
Group Title
Six students are pairing up to play tennis.In how many different ways can they pair up?
 2 years ago
 2 years ago
Safari321 Group Title
Six students are pairing up to play tennis.In how many different ways can they pair up?
 2 years ago
 2 years ago

This Question is Closed

mridrik Group TitleBest ResponseYou've already chosen the best response.1
This is not permutations luis, it's combinations
 2 years ago

Safari321 Group TitleBest ResponseYou've already chosen the best response.0
720 ways?
 2 years ago

mridrik Group TitleBest ResponseYou've already chosen the best response.1
he is wrong
 2 years ago

mridrik Group TitleBest ResponseYou've already chosen the best response.1
he was saying that if Anne and Bill paired up, it would be different than Bill and Anne pairing up
 2 years ago

mridrik Group TitleBest ResponseYou've already chosen the best response.1
it can be written as nCr which means n choose r, where n is larger. so in this case it is 6 choose 2, and to find the answer, you plug them into this formula: dw:1331001470884:dw
 2 years ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.1
pick one person, person A then their are 5 choices for partners. after that pick another, there are 3 choices of partners. then no choices
 2 years ago

Safari321 Group TitleBest ResponseYou've already chosen the best response.0
so there's a formula for combinations?
 2 years ago

mridrik Group TitleBest ResponseYou've already chosen the best response.1
! means factorial, and you multiply by all the natural numbers less than the number in front of the !, so for 6! it would be, 6 x 5 x 4 x 3 x 2 x 1
 2 years ago

Safari321 Group TitleBest ResponseYou've already chosen the best response.0
then that'll be the outcome of the of combinations?
 2 years ago

mridrik Group TitleBest ResponseYou've already chosen the best response.1
6! = 720, then we divide by 2! (which is just 2) times (62)! 2 x 4! = 4 x 3 x 2 x 2 x 1 = 48, so the answer is 720 divided by 48 which simplifies to 15
 2 years ago

Safari321 Group TitleBest ResponseYou've already chosen the best response.0
okay mridrick thanks!
 2 years ago

mridrik Group TitleBest ResponseYou've already chosen the best response.1
you're welcome
 2 years ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.