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Mashcka [7]
3 years ago
12

4/7 - 2/4 plz help thank you

Mathematics
1 answer:
Yanka [14]3 years ago
3 0
1/14 is you answer
you can you a fraction calculator on you pc for help with fraction......

www.calculatorsoup.com



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The local water slides have 120 employees, of which 70% are temporary. How many permanent employees are there?
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.70/100 ×120 is 84 .which is temporary so to find permanent u subtract 120 from 84 which is 36

Step-by-step explanation:

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on Tuesday the Madison Avenue Hotel had 5 occupied rooms for every 2 unoccupied rooms. If there were 80 rooms occupied on Tuesda
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32

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5 0
3 years ago
The number of arrivals per minute at a bank located in the central business district of a large city was recorded over a period
Sergio [31]

Answer:

a. μ = 25

b. σ = 16.496

Step-by-step explanation:

Note: See the attached excel for the calculation of Mean and Deviation from Mean.

Let: N = Number of observation = 9

F = Frequency

Therefore, we have:

a. Compute the expected number of arrivals per minute. μ=___( please type as an integer or a decimal)

From the attached excel file, we have:

Total F = 200

Therefore, we have:

μ = Mean = Total of F / (N - 1) = 200 / (9 - 1) = 25

b. Compute the standard deviation σ=___(please round to three decimal places as needed)

From the attached excel file, we have:

Total (F -  μ)^2 = 2,177

σ = Standard deviation = (Total of (F -  μ)^2 / (N - 1))^0.5 = (2,177 / (9 - 1))^0.5 = 16.496

Download xlsx
7 0
2 years ago
How long does it take to travel 240 km at a constant speed of 12 km/h?
timama [110]
All that is necessary in this question is to divide. 240 km divided by 12 is 20. So this means that it would take exactly 20 hrs for someone to drive 240 km in 12 km an hr<span />
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