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3 years ago

9

Thirty students are eating lunch at 5 tables. Each table has the same number of students. How many students are sitting at each

table

2 answers:

allochka39001 [22]3 years ago

6 0

There are 6 students sitting at each table, just divide 30 by 5.

kaheart [24]3 years ago

5 0

30 ÷ 5
6 students at each table

Hope this helps!

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xz_007 [3.2K]

Answer:

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And replacing:

$\mu_{\bar X}= 5$

And the deviation:

$\sigma_{\bar X}= \frac{0.283}{\sqrt{5}}= 0.126$

And the distribution is given:

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Step-by-step explanation:

For this case we have the following info given :

$\mu= 5. \sigma^2 =0.08$

And the deviation would be $\sigma = \sqrt{0.08}= 0.283$

For this case we select a sample size of n = 5 and the distirbution for the sample mean would be:

$\bar X \sim N(\mu , \frac{\sigma}{\sqrt{n}})$

And replacing:

$\mu_{\bar X}= 5$

And the deviation:

$\sigma_{\bar X}= \frac{0.283}{\sqrt{5}}= 0.126$

And the distribution is given:

$\bar X \sim N(\mu= 0.08, \sigma= 0.126)$

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3 years ago

Two numbers are said to be 'relatively prime' if their greatest common factor is 1. How many integers greater than 10 and less t

mars1129 [50]

Answer:

d. 9 integers

Step-by-step explanation:

Given that two numbers are said to be 'relatively prime' if their greatest common factor is 1.

We are to find relatively prime with 28 which are greater than 10 and less than 30

We have 11,12,13...29 satisfying the criteria greater than 10 and less than 30

To be relatively prime with 28, common factors should be only 1.

28 = 2x2x 7. Hence the numbers which do not have factors as 2 or 7 will be relatively prime. Remove all the even numbers from the list.

We have 11,13,15....29.

Of these 21 is the multiple of 7 so remove that.

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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2 years ago

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alexandr1967 [171]

Answer:

4/5 cup

Step-by-step explanation:

Since he is putting an equal amount in each bowl, we can find the amount in each bowl by dividing 4 by 5.

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