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kari74 [83]
3 years ago
15

A pizza has 8 slices and papa gino's sells the whole pizza for $16. What is the unit rate for a slice of pizza?

Mathematics
2 answers:
BabaBlast [244]3 years ago
8 0

Answer:

It would be $2 per piece, because 16 divided by 8 is two.

Step-by-step explanation:

erastova [34]3 years ago
3 0

Answer:

The asnwer is $2 because 16 divided by 8 is 2

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The manager of a grocery store has taken a random sample of 100 customers. The average length of time it took the customers in t
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Answer:

The test statistic is c. 2.00

The p-value is a. 0.0456

At the 5% level, you b. reject the null hypothesis

Step-by-step explanation:

We want to test to determine whether or not the mean waiting time of all customers is significantly different than 3 minutes.

This means that the mean and the alternate hypothesis are:

Null: H_{0} = 3

Alternate: H_{a} = 3

The test-statistic is given by:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

In which X is the sample mean, \mu is the value tested at the null hypothesis, \sigma is the standard deviation and n is the size of the sample.

Sample of 100 customers.

This means that n = 100

3 tested at the null hypothesis

This means that \mu = 3

The average length of time it took the customers in the sample to check out was 3.1 minutes.

This means that X = 3.1

The population standard deviation is known at 0.5 minutes.

This means that \sigma = 0.5

Value of the test-statistic:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

z = \frac{3.1 - 3}{\frac{0.5}{\sqrt{100}}}

z = 2

The test statistic is z = 2.

The p-value is

Mean different than 3, so the pvalue is 2 multiplied by 1 subtracted by the pvalue of Z when z = 2.

z = 2 has a pvalue of 0.9772

2*(1 - 0.9772) = 2*0.0228 = 0.0456

At the 5% level

0.0456 < 0.05, which means that the null hypothesis is rejected.

7 0
3 years ago
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5^(-3) = 1/5^3 = 1/125
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In a seventh grade class, the ratio of boys to girls is 3/9. there are 28 students in the class. Which equation show how to find
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Answer:

Hey there! ok , so your equation would be 28 / 3

Step-by-step explanation:

The equation would be 28/3 because there are 28 students in the class and the ratio of boys to girls is 3-9 meaning that it is 1/3, which is the same as dividing by 3, so the equation would be 28/3

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2 years ago
What is the slope of a line that passes through (2, 77) and (98, 5)
blagie [28]

Answer:

Step-by-step explanation:

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