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3 years ago

For how many weeks would the class need to sell cookies in order to earn $5000.

1 answer:

6 0

The answer is 30 weeks.
To find this, first divide $500 and 3, giving you the answer of 166.666667. Round it up to the nearest hundredth, which would be 166.67.
$166.67 per week.
Then divide 5000 and 166.67 which gives you 29.9994. Round up to the nearest whole and your answer would be 30. It would take 30 weeks.

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4 years ago

The area of triangle PQR is 231 cm2 , and PQ = 21 cm. Find the altitude SR. Help me solve this

Shtirlitz [24]

Answer:

SR = 22 cm

Step-by-step explanation:

area = bh/2

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3 years ago

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3 years ago

Which label on the cone below represents the vertex? A cone. A is the base, C is the center of the base, B is the height, and D

GaryK [48]

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Step-by-step explanation:

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3 years ago

Read 2 more answers

Suppose that distribution of the daily calcium intake of Americans is left skewed with a mean of 800 mg and a standard deviation

babymother [125]

Answer:

Explained below.

Step-by-step explanation:

According to the Central Limit Theorem if an unknown population is selected with mean μ and standard deviation σ and appropriately huge random samples (n > 30) are selected from this population with replacement, then the distribution of the sample means will be approximately normal.

Then, the mean of the sampling distribution of sample means is given by,

$\mu_{\bar x}=\mu$

And the standard deviation of the sampling distribution of sample means is given by,

$\sigma_{\bar x}=\frac{\sigma}{\sqrt{n}}$

So, if the sample of daily calcium intake of Americans collected is more than 30, then the sampling distribution of $\bar X$ will be approximately normal.

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3 years ago