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RoseWind [281]
3 years ago
14

Please show work so i know how you got your answer

Mathematics
1 answer:
juin [17]3 years ago
8 0

Answer:

24

Step-by-step explanation:

7 5/6 x3 =23.5

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According to the Department of Transportation, 27% of domestic flights were delayed in the last year at JFK airport. Five flight
Mars2501 [29]

Answer:

The probability that all the five flights are delayed is 0.2073.

Step-by-step explanation:

Let <em>X</em> = number of domestic flights delayed at JFK airport.

The probability of a domestic flight being delayed at the JFK airport is, P (X) = <em>p</em> = 0.27.

A random sample of <em>n</em> = 5 flights are selected at JFK airport.

The random variable <em>X</em> follows a Binomial distribution with parameters <em>n</em> and <em>p</em>.

The probability mass function of <em>X</em> is:

P(X=x)={5\choose x}0.27^{x}(1-0.27)^{5-x};\ x=0,1,2...

Compute the probability that all the five flights are delayed as follows:

P(X=5)={5\choose 5}0.27^{5}(1-0.27)^{5-5}=1\times 1\times 0.207307=0.2073

Thus, the probability that all the five flights are delayed is 0.2073.

4 0
3 years ago
Domain and, range in interval notation
Bas_tet [7]

Domain: [-4,4]  (left-to-right or x-values used)

Range: [-4,4] (down-to-up or y-values used)

Function: no

4 0
2 years ago
An entrepreneur buys some microscopes. Each one cost $200 and resells online for $526. What is the mark-up percentage?
Dafna11 [192]

Answer:

326

Step-by-step explanation:

Given: Microscopes. Each one costs $200 and resells online for $526.

To find: What is the mark-up percentage?

Solution: Simply take the sales price minus the unit cost, and divide that number by the unit cost. Then, multiply by 100 to determine the markup percentage.

526 - 200 = 326

Net Profit Margin = 61.98%

Net Profit = $326.00

Profit Percentage = 163.00%

Find more here: brainly.com/question/23345732

6 0
3 years ago
Two consecutive numbers that lie between 2 and 3
Anna35 [415]

Answer:

-2, -1 , 0 , and 1

Step-by-step explanation:

6 0
3 years ago
Why is 1/6 greater than 1/8 but less than 1/3??
ollegr [7]
1/6 is greater than 1/8 but less than 1/3 because: think of 1 slice taken away from a pizza with 6 slices, now think of 1 slice taken away from a pizza with 8 slices. Do the same with the last pizza. Think how much space was taken away from each pizza.
3 0
3 years ago
Read 2 more answers
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