juliannabartra
16.04.2020 •
Mathematics
The general manager of a fast food restaurant chain must select 6 restaurants from 11 for a promotional program. How many different possible ways can this selection be done?
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Ответ:
Step-by-step explanation:
This question will be solved using the combination formula which is nCr because the order is unimportant and we need the selection.
11C6
11!/(11-6)!*6!
= 462
Therefore the manager can select the restaurant in 462 ways.
Ответ:
462
Step-by-step explanation:
There 6 slots available to fill in the restaurants options
- For the 1st slot, there are 11 ways to choose
- For the 2nd slot, there are 10 ways to choose
- For the 3rd slot, there are 9
- For the 4th slot, there are 8
- For the 5th slot, there are 7
- For the last 6th, there are 6 ways
So in total there would be 11*10*9*8*7*6 = 332640 ways to choose. But since the order of these 6 slots don't matter, there are actually 6! = 720 ways to order these 6 slots. So the actual number of possible ways is
332640 / 720 = 462
Ответ:
A: MLK Boulevard, & Valley Road
B: MLK Boulevard, & Hollingworth Road