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Jobisdone [24]
4 years ago
9

Two friends share 7 cookie equally. How many cookies does each friend get?

Mathematics
2 answers:
tigry1 [53]4 years ago
3 0
3 1/2 because it is an equal amount
allsm [11]4 years ago
3 0

Answer:  Each friend get 3.5 cookies.

Step-by-step explanation:  Given that two friends share 7 cookie equally.

We are to find the number of cookies that each friend get.

We will be using the UNITARY method to solve the given problem.

Number of cookies shared by 2 friends equally = 7.

Therefore, number of cookies that one friend get will be

\dfrac{7}{2}=3.5.

Thus, each friend get 3.5 cookies.

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IRINA_888 [86]
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7 0
4 years ago
Determine the minimum sample size required when you want to be 99% confident that the sample mean is within 0.50 units of the po
vfiekz [6]

Answer:

b. 224

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.99}{2} = 0.005

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.005 = 0.995, so z = 2.58

Now, find the margin of error M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

In this problem:

We want to find n, when M = 0.5, \sigma = 2.9 So

M = z*\frac{\sigma}{\sqrt{n}}

0.5 = 2.58*\frac{2.9}{\sqrt{n}}

0.5\sqrt{n} = 7.482

\sqrt{n} = 14.964

(\sqrt{n})^{2} = (14.964)^{2}

n = 223.9

The nearest integer number to 223.9 is 224.

So the correct answer is:

b. 224

6 0
3 years ago
Loni’s credit card statement for April showed a membership fee of $85, a late fee of $45, a finance charge of $7.45, and an over
Jlenok [28]

Answer:

$157.45

Step-by-step explanation:

All the amounts provided in the question are supposed to be added as a fee, so if you add all the numbers you would get $157.45.

4 0
3 years ago
Answer this asap 0-0-0-0-0
Dmitry [639]

Step-by-step explanation:

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4 0
3 years ago
What is five million four thousand three hundred in standard form
Ket [755]

Answer:

5,400,300...........

4 0
3 years ago
Read 2 more answers
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