SOLUTION: Hello. I just have a quick question. If I was to have a 77% grade in one class, and I get 48 questions right out of a 53 point quiz. How much will that boost the grade?

Algebra ->  Average -> SOLUTION: Hello. I just have a quick question. If I was to have a 77% grade in one class, and I get 48 questions right out of a 53 point quiz. How much will that boost the grade?      Log On


   

Question 933137: Hello. I just have a quick question. If I was to have a 77% grade in one class, and I get 48 questions right out of a 53 point quiz. How much will that boost the grade?
Found 3 solutions by Alan3354, ewatrrr, MathLover1:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Depends on the weight of the quiz.

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
Quiz: 100%2848%2F53%29 = 90.6% rounded
......
How much the Quiz will boost grade, depends on its weighting
relative to the previous 77% average.
.....
For example: if it were to account for 10% of the total grade
.90(77) + .10(90.6) = 78.36 %

Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

you have a 77% grade in one class,
if you get 48 questions right out of a 53, then you got 48%2F53=0.9056603773584906=0.91 which is 91%
your average will be %2877%2B91%29%2F2+=84%
the difference between 77% and 84% is 84-77=7%
so, boost the grade by 7%