Question

what is mean of n ,n+1 ,n+3,n+7and n+9​

Answer 1

Answer:

n + 4 is the mean of the given numbers.

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Explanation

Mean refers to the average of the numbers. We can find average of the numbers by adding them all together and dividing them by quantity of numbers.

we are given with five numbers:

n, (n + 1), (n + 3), (n + 7) and (n + 9)

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Mean of the numbers:

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$~~\leadsto~~\small\rm\dfrac{Sum~of~the~numbers}{Quantity~of~the~numbers}$

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$~~\leadsto~~\small\rm\dfrac{n + (n + 1) + (n + 3) + (n + 7) + (n + 9}{5}$

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$~~\leadsto~~\small\rm\dfrac{(n + n + n + n + n)(1 + 3 + 7 + 9)}{5}$

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$~~\leadsto~~\small\rm\dfrac{(5n+20)}{5}$

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$~~\leadsto~~\small\rm\dfrac{\not{\!5}(n+4)}{\not{\!5}}$

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$~~\leadsto~~n + 4$

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n + 4 is the mean of the given data.

Answer 2

answer is in attachment