SOLUTION: If I have a 77% in a class, what would I need to score on a test out of 100 to bump that up to a 80% final grade?

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Question 545991: If I have a 77% in a class, what would I need to score on a test out of 100 to bump that up to a 80% final grade?
Found 2 solutions by Alan3354, JBarnum:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
If I have a 77% in a class, what would I need to score on a test out of 100 to bump that up to a 80% final grade?
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Not enough info.
You have to know how much of your grade the test is.

Answer by JBarnum(2146) About Me  (Show Source):
You can put this solution on YOUR website!
%2877%2Bx%29%2F2=80take current % add unknown divide by 2 and set = to the wanted %
%2877%2Bx%29=160calculate by multiplying by 2 then subtracting 77
x=83
83 out of 100
below is true i was going on equal amount for test as rest of work.