Answer:
6/7
Step-by-step explanation:
18/21 dollars is simplified when you divide the fraction by 3 on each number. So you get 6/7 of her money was spent.
Answer:
33
Step-by-step explanation
22 divided by 2 is 11
it says four years ago so add 11 and 4 and that equals 15
she is 15 right now. then add 22 which is 37 and subtract 4 which your answer would be 33
Answer:
Step-by-step explanation:
cuz 7 is greater then 5
Answer:
The number which appears most often in a set of numbers.
Answer:
The expected amount for a duration of 20 weeks is $9.4
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Step-by-step explanation:
Read attachment to understand the complete question
From the question, we have the following given parameters:
x = Amount paid for a second movie
--- Expected value of x
--- Standard deviation of x
Required
Determine the total amount paid for a second movie for 20 weeks
The required implies that we calculate the expected value for a duration of 20 weeks.
i.e.
If

Then:

Substitute 20 for n

Substitute 0.47 for E(x)


<em>Hence, the expected amount for a duration of 20 weeks is $9.4</em>