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jolli1 [7]
3 years ago
5

A total of

Mathematics
2 answers:
Yuliya22 [10]3 years ago
6 0
The answer is 110 440/4=110
gulaghasi [49]3 years ago
4 0
The answer is 110 adult tickets. Let x= student tickets and y= adult tickets. 

We know that the total tickets sold was 440. That means the total number of student tickets (x) plus the total number of adult tickets (y) equaled 440. Putting it into an equation, you get:

x+y=440

Now we know that the amount of student tickets is equal to three times as many adult tickets, so in an equation that is seen as:

x=3y

In order to solve for one variable, plug in 3y for the x value of the first equation to get:

y+3y=440

then solve:

4y=440
y= 440/4
y=110

The total number of adult tickets sold was 110 tickets. 
(This method used in math is technically called "Solving Systems of Equations", just fyi).


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sergejj [24]

Explanation:

The sample mean is not always equal to the population mean but if we take more and more number of samples from the population then the mean of the sample would become equal to the population mean.

The Central Limit Theorem states that we can have a normal distribution of sample means even if the original population doesn't follow normal distribution, But we have to take a lot of samples.

Suppose a population doesn't follow normal distribution and is very skewed then we can still have sampling distribution that is completely normal if we take a lot of samples.

3 0
2 years ago
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nika2105 [10]
Here's how to convert 0.39 to a fraction...

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So we can just say that .39 is the same as 39/100.

So your final answer is: 0.39 can be written as the fraction 39/100 (ALREADY SIMPLIFIED)

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2 years ago
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if a store uses a selling price based markup of 40% and an item cost the store $300 what selling price would the store set for t
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Answer:

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