jman473
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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

Respuesta :

Answer:

75

Step-by-step 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=[tex]\frac{w1×x1+w2×x2+......wn×xn}{w1+w2+...wn}[/tex]

average=[tex]\frac{10×80+30×84+40×74+20×60}{10+30+40+20}[/tex]

average=74.8≈75

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