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Hi everyone! How are you all? I'm back until mid-June, as that'll be the end of the school year for me! 

 

It's nice to be back!

off-topic
 Apr 24, 2018
 #1
avatar+405 
+3

Hey dude! Do you mind answering a math question right now? Im having a tough time on it and almost all my class is to. Heres the question.

You have a frame that holds three pictures. You pulled out your favorite five photos. How many sets of three are there?

Make a list of all the possible combinations using the numbers 1 - 5 to represent the photos.

i think there is 10 combinations but that doesnt seemright.

 Apr 24, 2018
 #4
avatar+98044 
+2

We have 5 photos and we want to choose only 3

So  C(5,3)  =  10

 

Call the pics  1, 2, 3, 4 and 5

 

Here are the possible sets :

 

(1,2,3)    (1,4,5)

(1,2,4)    (2,3,4)

(1,2,5)    (2,3,5)

(1,3,4)    (2,4,5)

(1,3,5)    (3,4,5)

 

 

cool cool cool

 Apr 24, 2018
 #5
avatar+405 
0

Thanks man!

 Apr 25, 2018

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