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zvonat [6]
4 years ago
13

how do i solve this. show all steps plz. this due very soon. help asap no idea what to do. ➡️MAKE SURE TO SHOW ALL STEPS!!!⬅️

Mathematics
1 answer:
noname [10]4 years ago
3 0
First, subtract 14 from 153.80 to get the ticket prices alone. You would get 139.8

Then, since they’re buying 4 tickets, you divide 139.8 by four to get the individual ticket pricing,
meaning your final answer would be $34.95

153.80=4x+14 ⬅️ y-int form if you need that to solve
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What is 1/10 of 30000
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1/10 of 30000 is 3000 because 30000 divided by 10 is 3000.
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If you spin a spinner with 3 equal parts, how many possible outcomes are there? A. 1 B. 2 C. 3 D. 4
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The answer is c. 3 possible outcomes
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Janine has job offers at two companies. One company offers a starting salary of $28,000 with a raise of $3000 each year. The oth
Umnica [9.8K]

Answer:

  8 years

Step-by-step explanation:

The first company's offer is $8000 lower, but the raises are $1000 higher each year. It will take 8000/1000 = 8 years for the salaries to be the same.

__

If you like, you can write an equation that will tell you the same thing.

  28000 +3000y = 36000 +2000y

Subtract 28000+2000y from both sides:

  3000y -2000y = 36000 -28000

  1000y = 8000

  y = 8000/1000 = 8

4 0
3 years ago
A doctor is measuring the average height of male students at a large college. The doctor measures the heights, in inches, of a s
denpristay [2]

Answer:

For this case the  95% confidence interval is given (63.5 , 74.4) and we want to conclude about the result. For this case we can say that the true mean of heights for male students would be between 63.5 and 74.4. And the best answer would be:

b. The doctor can be 95% confident that the mean height of male students at the college is between 63.5 inches and 74.4 inches.

Step-by-step explanation:

Notation

\bar X represent the sample mean for the sample  

\mu population mean (variable of interest)

s represent the sample standard deviation

n represent the sample size  

Solution to the problem

The confidence interval for the mean is given by the following formula:

\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}   (1)

In order to calculate the mean and the sample deviation we can use the following formulas:  

\bar X= \sum_{i=1}^n \frac{x_i}{n} (2)  

s=\sqrt{\frac{\sum_{i=1}^n (x_i-\bar X)}{n-1}} (3)  

In order to calculate the critical value t_{\alpha/2} we need to find first the degrees of freedom, given by:

df=n-1=40-1=39

For this case the  95% confidence interval is given (63.5 , 74.4) and we want to conclude about the result. For this case we can say that the true mean of heights for male students would be between 63.5 and 74.4. And the best answer would be:

b. The doctor can be 95% confident that the mean height of male students at the college is between 63.5 inches and 74.4 inches.

3 0
4 years ago
Due today, almost midnight
Eddi Din [679]

Answer: your just finding the meadian soo line up each number from least to greatist and find the middle number

Step-by-step explanation:

8 0
3 years ago
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