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Leona [35]
3 years ago
11

Steve had 48 chocolates but decided to give 8 chocolates to each of his coworkers,

Mathematics
2 answers:
ziro4ka [17]3 years ago
7 0

Answer:

n = 48 - 8x

Step-by-step explanation:

n = how many chocolates Steve has left.

x = how many coworkers

Lunna [17]3 years ago
5 0

Answer:

48 - 8c

Step-by-step explanation:

let c be the number of coworkers

48 - 8c would be the expression because it starts with 48 and for every coworker 8 is subtracted.

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The delivery times for all food orders at a fast-food restaurant during the lunch hour are normally distributed with a mean of m
UkoKoshka [18]

Answer:

Let X the random variable that represent the delivery times of a population, and for this case we know the distribution for X is given by:

X \sim N(14.7,3.7)  

Where \mu=14.7 and \sigma=3.7

Since the distribution of X is normal then we know that the distribution for the sample mean \bar X is given by:

\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})

And we have;

\mu_{\bar X}= 14.70

\sigma_{\bar X} =\frac{3.7}{\sqrt{40}}= 0.59

Step-by-step explanation:

Assuming this question: The delivery times for all food orders at a fast-food restaurant during the lunch hour are normally distributed with a mean of 14.7 minutes and a standard deviation of 3.7 minutes. Let R be the mean delivery time for a random sample of 40 orders at this restaurant. Calculate the mean and standard deviation of \bar X Round your answers to two decimal places.

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable that represent the delivery times of a population, and for this case we know the distribution for X is given by:

X \sim N(14.7,3.7)  

Where \mu=14.7 and \sigma=3.7

Since the distribution of X is normal then we know that the distribution for the sample mean \bar X is given by:

\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})

And we have;

\mu_{\bar X}= 14.70

\sigma_{\bar X} =\frac{3.7}{\sqrt{40}}= 0.59

4 0
3 years ago
Using Heron's Formula, find the Area.<br> Sides are 7 13 8
Amanda [17]

Answer:

10.3

Step-by-step explanation:

hope this helps, if any genius answers as well, give brainliest to them

5 0
3 years ago
Read 2 more answers
Triangle XY Z is similar to triangle ABC.
garri49 [273]

Answer:

13.5

Step-by-step explanation:

12/4=3

9/3=3

4.5x3=13.5

8 0
2 years ago
Read 2 more answers
Estimate the average rate of change from x=2 to x=5
Sliva [168]

Answer:

5x3x2y

Step-by-step explanation:

7 0
3 years ago
PLEASE HELP AND SHOW YOUR WORK!!
trasher [3.6K]

Answer: The answer would be B) 9% Decrease!

275 - 250 = 25.

25/275 = 0.0909090909

0.0909090909 x 100 = 9.09090909091

Finally you'd round it to 9%.

Therefore there was a 9% decrease in the amount of large pizzas.

Hope this helps (: Stay safe.

8 0
3 years ago
Read 2 more answers
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