Anna has the following averages in his math class.
report
card
homework avg: 95
quiz avg: 90
test avg: 87
final exam: ?
if the teacher weights homework at 20%, quizzes at 20%
tests at 40% , and the final exam at 20%, what is the
minimum grade anna can make on the final so that she
scores a 90 in the class?
a. 86
b. 91
c.
d
94
98

b) 91

Step-by-step explanation:

Step 1: Multiple marks by its weights

Homework average: 95 x 20% = 19

Quiz average: 90 x 20% = 18

Test average: 87 x 40% = 34.8

Final exam: y x 20% = 0.2y

Step 2: Add all weighted averages and find y

19+18+34.8+0.2y = 90

71.8 + 0.2y = 90

y = 18.2/0.2

y = 91

Therefore, Anna needs to score minimum 91 in the final exam so that she can score a 90 in class.

Option b is correct.

!!

gmt is 4 hrs ahead of edt so just add four hours to 1: 14: 20 (minutes and seconds stay the same)

gmt is 5: 14: 20

hope this !

~just a girl in love with shawn mendes