1) 3•5(64-65)
2) 3•5(-1)
3) 3•(-5)
4) -15
(4 + x) / 2 = 42
(2) (2)
4 + x = 84
-4 -4
x = 80
Mike started with 80 cards
Hope I helped :)
Answer:
360360
Step-by-step explanation:
We have the following information:
Number of ways of choosing 5 car models from 15 different models = 15C5
Number of arranging above 5 models = 5!
Therefore, the total number of displayong 5 models would be:
15C5 * 5!
nCr = n! / (r! * (n-r)!)
we replace:
15! / (5! * (15-5)!) * 5! = 15! / 10! = 360360
So there are a total of 360 360 ways to display the 5 car models.