SOLUTION: If I have a 89 average how much will an 78% on a test bring down the average?

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Question 918634: If I have a 89 average how much will an 78% on a test bring down the average?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
Depends...on the weighting
For ex if 89 avg represents 2 previous tests of equal weight...then
%282%2A89+%2B+78%29%2F3 = 85 1/3 %