Answer:
0.021/yr or 2.1%/yr
Step-by-step explanation:
Find the quotient:
$36.75/$36.00
This comes out to 1.021,
so the inflation rate is 1.021 - 1.000 = 0.021 or 2.1%/year
Answer:
0.55% probability that exactly 5 out of the first 13 customers buy a magazine
Step-by-step explanation:
For each customer, there are only two possible outcomes. Either they buy a magazine, or they do not. The probability of a customer buying a magazine is independent of other customers. So we use the binomial probability distribution to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

In which
is the number of different combinations of x objects from a set of n elements, given by the following formula.

And p is the probability of X happening.
10% of his customers buy a magazine
This means that 
What is the probability that exactly 5 out of the first 13 customers buy a magazine?
This is P(X = 5) when n = 13. So


0.55% probability that exactly 5 out of the first 13 customers buy a magazine
Answer:
Step-by-step explanation:
C
Step-by-step explanation:
The quadratic formula is:

A, in this case, is -2.
B is 5
C is -11
x = 
x = 
x = 
x =
and 
We can break up the fraction to make it easier on our eyes
x = 
≈1.9843
x = 
5 batches
2/3 cup per batch
so
5 times 2/3=5/1 times 2/3=10/3=3 and 1/3 cups of oatmeal
answer is 3 and 1/3 cups