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Bess [88]
3 years ago
5

Determine if each of the following pairs of rates are proportional

Mathematics
1 answer:
Afina-wow [57]3 years ago
4 0
The middle one is proportional
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If your current examination mean is 97.2 and you receive a 99 on the next examination, what effect will this have?
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If you have an average of 97.2 on your current exam and you get a 99 on your next exam, your average will increase.

  • Mean in mathematics is the sum (total) of all the values in a set of data, such as numbers or measurements, divided by the total number of values.

  • To find the average, sum all the values ​​in the set. Then divide the total by the number of values.

We have the current examination mean, xold = 97.2

Now, we receive,  x = 99 on the next examination, the new mean will be:

xnew = (xold + x)/N

xnew = (97.2+99)/2

xnew = 196.2/2

xnew = 98.1  

The new average is 98.1

98.1 > 97.2

So if you score 99 on your next exam, your average will increase.

Learn more about mean here

brainly.com/question/1136789

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Step-by-step explanation:

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