HELP PLEASE ITS THE ONLY QUESTION I NEED!!
2 answers:
Because the order doesn't matter on where each person sits use the combinations formula:
C = n! / (r!(n-r)!)
Where n is the total number of people and r is the number of chairs.
C = 6! / (4!(6-4)!)
C = (6*5*4*3*2*1) / ((4*3*2*1(2*1))
C = 720 / (24*2)
C = 720 / 48
C = 15
There are 15 different arrangements.
Answer:
360 ways
Step-by-step explanation:
This is a permutation because we care about the order.
It is a seating arrangement, so order matters
We are taking 6 things 4 at a time
n!
--------- where n is the number of items and r is how many we are taking
(n-r)!
6!
------
(6-4)!
720
-------
2!
720/2
360 ways
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the answer
Step-by-step explanation:
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above
Answer:
25% Discount
Step-by-step explanation:
find the percent of discountOriginal price Sale Price
$60
% $45 =
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Answer:
3/4 pizza is left. If you want an explanation, ask me ;>
It would actually be -14 because 5+4-2=7 and if you multiply 7 by -2 you get -14