SOLUTION: A, B and C represent 3 numbers. The mean of A, B and C is A. Calculate the mean of B and C. help!

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Question 560410: A, B and C represent 3 numbers. The mean of A, B and C is A. Calculate the mean of B and C.
help!
Found 2 solutions by Edwin McCravy, scott8148:
Answer by Edwin McCravy(20060)   (Show Source): You can put this solution on YOUR website!
The mean of A, B and C is A. Calculate the mean of B and C.
Given  = A, we want to find 

     = A

Multiply both sides by 3:

A + B + C = 3A
 
    B + C = 2A

Divide both sides by 2:

    = 

    = A


Answer:  A

Edwin
Answer by scott8148(6628)   (Show Source): You can put this solution on YOUR website!
"The mean of A, B and C is A" ___ (A + B + C) / 3 = A

multiplying by 3 ___ A + B + C = 3A

subtracting A ___ B + C = 2A

dividing by 2 ___ (B + C) / 2 = A
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