Posted by Anonymous on .
If Brittany has a 49.7% grade average then for her final exam that is worth 20% of the grade and she gets a 90% what would her final grade be?

Math 
MathMate,
Grade average is worth (10020)=80%
Final is worth 20%.
Overall average
=49.7%*80%+90%*20%
=57.76%