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erastova [34]
3 years ago
12

Justin gives his sister 3/4 of his dollar. How much money is that?

Mathematics
2 answers:
TEA [102]3 years ago
8 0

Answer: 75 cents

A dollar is 100 cents

3/4 of 100 is 75

USPshnik [31]3 years ago
6 0

Answer:

That is 75 cents

Step-by-step explanation:

It is because the dollar can be divided by 4 which is 25 50 75 100 and since he gave her 3 of it she got 75 cents.

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Answer:

the middle 50% of most lengths of pregnancies ranges between 255.62 days and 274.38 days

Step-by-step explanation:

Given that :

Mean  = 265

standard deviation = 14

The formula for calculating the z score is z = \dfrac{x -\mu}{\sigma}

x = μ + σz

At middle of 50% i.e 0.50

The critical value for z_{\alpha/2} = z_{0.50/2}

From standard normal table

z_{0.25}= + 0.67  or -0.67  

So; when z = -0.67

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x = 265 -9.38

x = 255.62

when z = +0.67

x = μ + σz

x = 265 + 14 (0.67)

x = 265 + 9.38

x = 274.38

the middle 50% of most lengths of pregnancies ranges between 255.62 days and 274.38 days

3 0
3 years ago
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sergejj [24]

Answer:

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Step-by-step explanation:

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Alika [10]

Answer:

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