The final grade for the weighted scores is 86%.
The weighted score can be computed by multiplying each score by the weight and adding the weighted scores.
Assignment Percent of Grade Score Weighted Score
Homework 10% 95% 9.5% (10% x 95%)
Quizzes 20% 75% 15.0% (20% x 75%)
Midterm 30% 85% 25.5% (30% x 85%)
Final Exam 40% 90% 36.0% (40% x 90%)
Final Weighted Grade = 86.0%
Thus, we can describe your math class has a weighted score of 86%.