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Natalija [7]
3 years ago
6

An electrician charges a set fee of $50 for every house call and then charges an additional hourly rate. One day, the electricia

n earned a total of $400 for a 5 hour job. Write an equation for C,C, in terms of t,t, representing the total cost of the electrician's services if the electrician spends tt hours at the house working.
Mathematics
1 answer:
Serhud [2]3 years ago
7 0

Answer:

50+5t=C

Step-by-step explanation:

Suppose the electrician spends t hours at the house working.

Amount charged for every house call by electrician = $50

The electrician earned a total of $400 for a 5 hour job.

Also, C denotes total cost of the electrician's services.

So, the equation for C in terms of t is given below.

50+5t=C

Here, C=400

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Answer:

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Given the following :

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Sampling distribution of the mean:

According to the central limit theorem:

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The standard deviation of the sample (s) : ratio of the population standard deviation and square root of the sample size.

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The central limit theorem also posits that once ths sample size is large enough, the sampling of the sample mean will be approximately normal.

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