The average of two numbers is twice the positive difference between if the smaller number is 9 what's my answer?

Question

Mathematics

Ronan Kelley

15 July, 23:37

The average of two numbers is twice the positive difference between if the smaller number is 9 what's my answer?

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Answers (1)

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Madalyn Castro · Answer 1

Let b, be the smallest number : Note the average of a+b = (a+b) / 2

(a+b) / 2 = 2 (a-b)

a+b = 4 (a-b)

a+b = 4a - 4b, but b = 9, then plug:

a+9 = 4a - 36

-3a = - 45

3a = 45

and a = 15