Answer:
x = 5
Step-by-step explanation:
2(x+6) = 22
2x+12 = 22
2x = 10
x = 5
Answer:
0.6472 = 64.72% probability that a randomly selected page does not need to be retyped.
Step-by-step explanation:
In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:
In which
x is the number of sucesses
e = 2.71828 is the Euler number
is the mean in the given interval.
Poisson distribution with an average of three errors per page
This means that 
What is the probability that a randomly selected page does not need to be retyped?
Probability of at most 3 errors, so:

In which
Then

0.6472 = 64.72% probability that a randomly selected page does not need to be retyped.
1. 100000
2. 0.000000000001
3. 400
Answer:
5/162
Step-by-step explanation:
There's a 5/9 chance that you spin an odd and a 1/2 chance you get heads and a 1/9 chance you get a 3 on the spinner multiply the fractions together and get 5/162.
Me : 4 x + 8 y = 64
My friend: 8 x + 16 y = 128
A ) 4 * 4 + 8 y = 64
16 + 8 y = 64
8 y = 64 - 16
8 y = 48
y = 48 : 8
y = 6 ( me and my friend work 6 hours at the second job )
B ) The number of hours we each work at the first job are also the same.