Question

Danielle has the following averages in his

math class:
Homework Avg : 80
Quiz Avg.: 84-
Test Ayg: 74
Final Exam: 60
If the teacher weights Homework at 10%,
Quizzes at 30%, Tests at 40%, and the Final
Exam at 20%, what is Danielle's class
average?
a. 82
c. 79
d.-77
- b. 75
-
-
in

Answer 1

75

Explanation:

given averages

Homework Avg : 80

Quiz Avg.: 84-

Test Ayg: 74

Final Exam: 60

weights

Homework at 10%,

Quizzes at 30%,

Tests at 40%

Final Exam at 20%

required to find daniels class average

we know that weighted average=
`(w1×x1+w2×x2+......wn×xn)/(w1+w2+...wn)`

average=
`(10×80+30×84+40×74+20×60)/(10+30+40+20)`

average=74.8≈75