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DaniilM [7]
3 years ago
7

Help please and explain

Mathematics
1 answer:
Rus_ich [418]3 years ago
5 0

Answer:

Hi there!

Your answers are:

As the pizza size increases, the topping price increases and the base price increases

The small pizza:

Base price: $9.49

Price per topping: $1.39

The medium pizza:

Base price: $11.49

Price per topping: $1.59

The large pizza:

Base price: $13.49

Price per topping: $1.79

The XL pizza:

Base price: $15.49

Price per topping: $1.99

Step-by-step explanation:

small:

15.05- 12.27 = 2.78 for TWO toppings

2.78/ 2 = 1.39$ per 1 topping

12.27 - 2.78 = 9.49$ for a plain pizza

medium:

17.85-14.67 = $3.18 for TWO toppings

3.18/2 = $1.59 per 1 topping

14.67- 3.18= $11.49 for plain pizza

large:

20.65-17.07= $3.58 for TWO toppings

3.58/ 2 = $1.79 per 1 topping

17.07- 3.58= $13.49 for plain pizza

xl:

23.45- 19.47= $3.98 for TWO toppings

3.98/2 = $1.99 per 1 topping

19.47- 3.98 = $15.49

I hope this makes sense! Let me know if you need clarification!

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3 years ago
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A researcher surveyed 150 high school students and found that 68% played a musical insturment. What would be a reasonable range
maria [59]

Answer:

The reasonable range for the population mean is (61%, 75%).

Step-by-step explanation:

The interval estimate of a population parameter is an interval of values that consist of the values within which the true value of the parameter lies with a certain probability.

The mean of the sampling distribution of sample proportion is, \hat p.

One of the best interval estimate of population proportion is the 95% confidence interval for proportion,

CI=\hat p \pm z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}

Given:

n = 150

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The critical value of <em>z</em> for 95% confidence level is:

z_{\alpha/2}=z_{0.05/2}=z_{0.025}=1.96

Compute the 95% confidence interval for proportion as follows:

CI=\hat p \pm z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}

     =0.68\pm1.96\sqrt{\frac{0.68(1-0.68)}{150}}\\\\=0.68\pm 0.0747\\\\=(0.6053, 0.7547)\\\\\approx (0.61, 0.75)

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5 0
3 years ago
Given the point (3,4) the slope of 6, find y, when x=27
vitfil [10]

Answer:

y = 148

Step-by-step explanation:

First, we use the point-slope form of the equation of a line to find the equation of this line.

y - y1 = m(x - x1)

y - 4 = 6(x - 3)

y - 4 = 6x - 18

y = 6x - 14

Now we let x = 27 and find y.

y = 6(27) - 14

y = 162 - 14

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Answer:

length of its each side is 786 cm

Step-by-step explanation:

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l = √617796

l = 786cm

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Sindrei [870]

Answer

The answer is 50 degrees because the measurement does not change even though it moves 1000 times.

Step-by-step explanation:


8 0
3 years ago
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