SOLUTION: if you are given two numbers and the average, and the question asks for the third number to complete the average. how do you find the third missing number?
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Question 749216: if you are given two numbers and the average, and the question asks for the third number to complete the average. how do you find the third missing number? Answer by solver91311(24713) (Show Source):
If you are given the average of three numbers, then 3 times the average is the sum of the three numbers. If you subtract each of the given numbers from the sum, you get the third number.
John
Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
