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cricket20 [7]
4 years ago
6

Marvin has 4 books to read for homework this week if he reads 2/3 of a book each night how many nights will it take him to read

all four book's?
Mathematics
2 answers:
Effectus [21]4 years ago
8 0
6 because I did the work and it's right
gtnhenbr [62]4 years ago
5 0
Four divided by 2/3 equals 4/1×3/2=twelve halfs, 12/2÷2/2=6/1=6
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A Ski resort tracks the proportion of seasonal employees who are rehired each season. Rehiring a seasonal employee is beneficial
DaniilM [7]

The test statistic z will be equal to -0.946 and it shows that there is no significant difference in the proportion of rehires between full time and part time.

Given sample sizes of 833 and 386 and result of samples 434 and 189.

n_{1} =833,     n_{2}=386

Proportion  of full time=434/833=0.52

Proportion of part time=189/386=0.49.

Difference in proportion =0.52-0.49

H_{0}:TTF- i∈ rho=0

H_{1}: TTF+i∈ rho≠0.

Mean of difference=0.03

Z=(X-μ)/σ

σ=\sqrt{0.4517/447}

=0.0317

σ=0.0317

z=(0-0.03)/0.0317

=-0.03/0.0317

=-0.317

p value will be =0.1736.

Because p value is greater than 0.01 so we will accept the null hypothesis which shows that there is no significant difference in the proportions.

Hence there is no significant difference in the proportion of rehires between full time and part time.

Learn more about z test at brainly.com/question/14453510

#SPJ4

6 0
2 years ago
I need help on number 18
vladimir2022 [97]

Answer:

Plan C

Step-by-step explanation:

Complete the table first:

To find the number of weeks for each amount of $ to save, divide $500 by the amount.

Plan B: $500/$30 = 16.7 weeks, rounded to 17 weeks

Plan C: $500/$40 = 12.5 weeks, rounded to 13 weeks

Plan D: $500/$50 = 10 weeks

Save $500 in less than 16 weeks with $20 extra:

Which plans need less than 16 weeks?

Plans C and D.

Check the amount of money Plan C gives:

In 13 weeks, how much extra money does this plan give?

Extra money = Total - $500

The total money is 13 weeks * $40 = $520

$520 - $500 = $20 in extra money

Therefore Plan C gives Todd $500 in less than 16 weeks, with $20 extra.

6 0
3 years ago
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Solve each of the systems below by substitution<br><br> y = -3/2x (fraction)<br><br> 3x + 2y = -4
Maslowich

Answer:

GET PHOTOMATH

Step-by-step explanation:

<h2>DOWNLOAD PHOTOMATH</h2><h2 /><h2 /><h2 /><h2>hope this helps bro :)</h2>
8 0
3 years ago
2.5 inches for every 10 feet of run what is the slope
Nikolay [14]
Rise/run 2.5/10 would be the answer
7 0
4 years ago
Abby works in the sales department. This month the company is offering a 3-week paid vacation to every employee who sells 230% o
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$110,400 products this month because $48,000(230%)=$110,400.
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