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marin [14]
3 years ago
13

Wuts the answer to this problem

Mathematics
1 answer:
Mazyrski [523]3 years ago
8 0

Answer:

Jane is 14 \frac{3}{10}

Step-by-step explanation:

The age of each person increases by a fractional amount.  In order to find Jane's age, you will need to start with Ari's age and then add the additional fractional amounts.  In order to add with fractions, the denominators must be the same.  In the case of Glen, you can figure his age out first:

12 \frac{4}{5} + 1 \frac{1}{6}

5 and 6 have a common denominator of 30, so multiply the numerator and denominator by the same factor and than add:

12 \frac{4}{5} = 12 \frac{24}{30} + 1\frac{1}{6} or 1 \frac{5}{30}= 13 \frac{29}{30}

Taking Glen's age and adding the additional amount for Jane:

13 \frac{29}{30} + 1 \frac{1}{3} or 1 \frac{10}{30}=14 \frac{3}{10}

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A recent survey of 50 executives who were laid off during a recent recession revealed it took a mean of 26 weeks for them to fin
drek231 [11]

Answer:

The pvalue of 0.0113 < 0.05 means that there is sufficient evidence to conclude that the mean time to find another position is less than 28 weeks at the 5% level of significance

Step-by-step explanation:

The null hypothesis is:

H_{0} = 28

The alternate hypotesis is:

H_{1} < 28

The test statistic is:

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.

A recent survey of 50 executives who were laid off during a recent recession revealed it took a mean of 26 weeks for them to find another position.

This means that n = 50, X = 26

Assume the population standard deviation is 6.2 weeks.

This means that \sigma = 6.2

Does the data provide sufficient evidence to conclude that the mean time to find another position is less than 28 weeks at the 5% level of significance

We have to find the pvalue of Z, looking at the z-table, when \mu = 28. It if is lower than 0.05, it provides evidence.

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

z = \frac{26 - 28}{\frac{6.2}{\sqrt{50}}}

z = -2.28

z = -2.28 has a pvalue of 0.0113 < 0.05.

The pvalue of 0.0113 < 0.05 means that there is sufficient evidence to conclude that the mean time to find another position is less than 28 weeks at the 5% level of significance

5 0
2 years ago
What is 50% of 33 show work please​
olganol [36]

Answer:

16.5

Step-by-step explanation:

50 x 33

-------------

100

= 16.5

8 0
2 years ago
Find the area of the shape.
solniwko [45]

Answer:

the area is 50.24

Step-by-step explanation:

to find the area of a quarter circle, use the formula <u>π x r^2</u>

                                                                                         4

6 0
2 years ago
ERROR ANALYSIS Describe and correct the error in finding the x-intercept.
EastWind [94]

The x-intercept is -6

Step-by-step explanation:

In order to find the x-intercept, we put y = 0 and to find the y-intercept we put x = 0

In the given method, x is put equal to zero instead of y as x-intercept had to be found.

Given equation is:

-2x+3y=12

-2x + 3(0) = 12\\-2x +0 = 12\\-2x = 12

Dividing both sides by -2

\frac{-2x}{-2} = \frac{12}{-2}\\x = -6

The x-intercept is -6

Keywords: Coordinate geometry, Intercepts

Learn more about intercepts at:

  • brainly.com/question/2131336
  • brainly.com/question/2150928

#LearnwithBrainly

3 0
3 years ago
What is 243.875 rounded to the nearest tenth,hundreth,ten,and hundred?
ira [324]
Tenth: 243.9
hundreth: 243.88
ten: 240
hundred:200

hope this helps
5 0
2 years ago
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