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REY [17]
3 years ago
14

At the fast pack shiping. The employees can unload 25 trucks in 5 hours which of the following is a correct unit rate for this s

ituation?
Mathematics
1 answer:
Natasha2012 [34]3 years ago
3 0

Answer:

5 trucks per hour

Step-by-step explanation:

25 trucks ÷ 5

5 hours ÷ 5

= 5 trucks per hour

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Gasta is 4 years older than his sister. If his sister is 12 years old. How old is Gasta​
Shalnov [3]

Answer:

16 years old

Step-by-step explanation:

The age of his sister = 12 years old

Gasta is 4 years older than his sister,

The age of Gasta

= 4 + 12

= 16 years old.

Therefore,

Gasta is 16 years old.

8 0
2 years ago
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Which expression is equivalent to this polynomial expression?<br><br> (2x²-3y²)(4x4+6x²y²+9y4
alexandr1967 [171]

Answer:

The answer is 8x^6 - 27y^6

5 0
2 years ago
The Flu has spread throughout a town. The function below determines how many people have the flu where t=time in days and f(t)=
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Answer:

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6 0
2 years ago
Suppose that a study of elementary school students reports that the mean age at which children begin reading is 5.9 years with a
Bas_tet [7]

Answer:

5.9 years.

Step-by-step explanation:

Central Limit Theorem

The Central Limit Theorem establishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean \mu = p and standard deviation s = \sqrt{\frac{p(1-p)}{n}}

In this question:

Mean of the population is \mu = 5.9

If a sampling distribution is created using samples of the ages at which 69 children begin reading, what would be the mean of the sampling distribution of sample means?

By the Central Limit Theorem, the same population mean, of 5.9 years.

3 0
3 years ago
!!!
Furkat [3]

Answer:

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7 0
2 years ago
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