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Elanso [62]
3 years ago
13

Nicole is half as old as Donald. The sum of their ages is 72. How old is Nicole, in years?

Mathematics
2 answers:
bixtya [17]3 years ago
6 0
Your gonna divide 72 by 2 so therefore you get 36
So that equals to Nicole’s age
krek1111 [17]3 years ago
6 0

Answer:

24 years

Step-by-step explanation:

let Donald's age be x

then Nicole's age would be 1/2 * x = x/2

now, x + x/2 = 72

3x/2 = 72

3x = 72*2

x = 144/3 = 48

Donald's age is 48, so Nicole's age is 1/2 * 48 = 24 years.

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3 years ago
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The difference (faculty-student) in the sample proportions of those who believe that five minutes is not enough time for students to change classes typically varies about 0.096 from the true difference in proportions. Option D is correct.

<h3>What is the standard deviation?</h3>

It is a measurement of statistical data dispersion. The degree to which the value varies is known as standard deviation.

The standard deviation of the sampling distribution is found as;

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The difference in the sample proportions of those who think five minutes is not enough time for students to switch classrooms generally differs by roughly 0.096 from the actual difference in proportions.

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To learn more about the standard deviation, refer to: brainly.com/question/16555520.

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6 0
2 years ago
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7 0
3 years ago
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Step-by-step explanation:

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3 0
3 years ago
Need help please...............................
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