SOLUTION: mean of 3 scores is 4. if sum of first two scores is 6, find the value of the third score.

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Question 1021877: mean of 3 scores is 4. if sum of first two scores is 6, find the value of the third score.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
%28%28S%5B1%5D%2BS%5B2%5D%2BS%5B3%5D%29%29%2F3=4
S%5B1%5D%2BS%5B2%5D%2BS%5B3%5D=12
But you also know,
S%5B1%5D%2BS%5B2%5D=6
Substituting,
6%2BS%5B3%5D=12
S%5B3%5D=6