How would you draw a picture to find 3 ÷ 1/2

1 answer:

5 0

You draw 3 rectangles and you split them into halves or put a line in between. Then, count 1 of every line in each of the boxes. You should get 3/2 because it's out of a half and that simplified is 1 and 1/2.

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Sergio is working on a research project involving the ages of students at Brooklyn College. After interviewing 500 students, he

Zinaida [17]

Answer:

The probability of of a randomly chosen student being exactly 21 years old.

= 1.293

Step-by-step explanation:

Step(i):-

Given Population size n = 500

Mean of the Population = 20 years and 6 months

= $20 + \frac{6}{12} = 20 +0.5 = 20.5 years$

Standard deviation of the Population = 2 years

Let 'X' be the range of ages of the students on campus follows a normal distribution

Let x =21

$Z = \frac{x-mean}{S.D}$

$Z = \frac{x-mean}{S.D} = \frac{21-20.6}{2} =0.2$

The probability of a randomly chosen student being exactly 21 years old.

P( Z≤21) = 0.5 + A( 0.2)

= 0.5 +0.793

= 1.293

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3 years ago

Please help me out. What is 421 divided by 27

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Answer:

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Step-by-step explanation:

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3 years ago

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server F, working 7 hours offers to join the group of five servers sharing their workload. If server F joins will the mean numbe

erastova [34]

π I don’t really know the answer I’m really sorry

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3 years ago

Could some one plz help me with this question

zhuklara [117]

Answer:

Step-by-step explanation:

The formula for this type of interest is $A=P(1+\frac{r}{n})^{nt}$ , where A is the total amount, P is the initial investment, x is the interest rate, n is the amount of times that the investment is compounded a year, and t is the amount of years. Plugging in the numbers given, you get: