Question 703887: i have a final average grade of 97% in my geometry class, and we recently took the final exam. i got an 80% on my final and it counts as 10% of our final average grade. what is my final grade with the 10% of the final exam added in?
Answer by KMST(5328)   (Show Source):
You can put this solution on YOUR website! I would calculate it as
You multiply the 97 average before the final times its 90% value (0.90 as a decimal),
multiply the 80 final exam grade times its 10% value (0.10 as a decimal),
and add them.
For my son, I always calculated the individual value of each assignment in grade points, so he would know how to prioritize different assignments.
If he had had a 97 average in geometry going into the final, but had pending overdue English work, I would calculate that the geometry final could get him from
 to  ,
so the pending English work that his passing depended on was a much higher priority that the geometry final that could at most make the difference between a B and an A.
In the same way, at any time during the school year, completing some assignment that got him 1 or 2 points in the final grade could be shrugged, as long as he did not do that too often.
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