What do I need to make on my final exam to have a 86 average?

Question

Exam = 30% (85 avq)
Project = 25% (89 avg)
Midterm = 15% (75 avg)
Final = 30 % ( ? )

Answer 1

You would need at least a 90.

Calculated as follows:

.3(85) + .25(89) + .15(75) + .3(X) = 86
X = 90

Answer 2

You need a 90%.
.3*85=25.5
.25*89=22.25
.15*75=11.25
25.5+22.25+11.25=59
59+.30(X)=86
.30X=86-59=27
x=27/.30=90 Therefore, you need a 90% for an 86% average.

Answer 3

your grade

Exam = 25.5
Project = 22.25
Midterm = 11.25

you'll need a 90 on the final! to get exactly 86 for your average