Ask Question
9 July, 20:24

Kevin has the following averages in her

math class:

Homework Avg.: 88

Quiz Avg.: 84

Test Avg.: 92

Final Exam:?

If the teachers weights Homework at 20%

Quizzes at 25%, Tests at 40%, and the

Final Exam at 15%, what is the minimum

grade Kevin can make on the final exam so

that she scores a 90 in the class?

a. 90

c. 86

d. 94

b. 97

+3
Answers (1)
  1. 9 July, 22:58
    0
    b. 97

    Step-by-step explanation:

    Home work = 88

    20 % of 88 = 88 x 20/100 = 17.60

    Quiz Average = 84

    25 % of 88 = 84 x 25/100 = 21

    Test Average = 92

    40 % of 92 = 92 x 40/100 = 36.8

    Add all = 17.60 + 21 + 36.8 = 75.40

    Let the marks be x in final exam

    The percentage is 15 % and scores a 90 in a class we can write

    15x/100 + 75.40 = 90

    0.15x = 90-75.40

    0.15x = 14.60

    x = 14.60/0.15 = 97

    final exam marks will be 97
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “Kevin has the following averages in her math class: Homework Avg.: 88 Quiz Avg.: 84 Test Avg.: 92 Final Exam:? If the teachers weights ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers