SOLUTION: I have my lecture grade which at the moment is 83.6, and a lab grade of 87.1. But, my final lab grade (87.1) is 25% of my grade. How do I figure out my final lecture grade? Thi

Question 935143: I have my lecture grade which at the moment is 83.6, and a lab grade of 87.1. But, my final lab grade (87.1) is 25% of my grade. How do I figure out my final lecture grade?
This is what I tried:
(.87)
---- = .0348 so, i did not know if I did this right, I did not think so.
(25)
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
I'm assuming you want to find your final overall grade (with lecture + lab grades combined in a way).

You do a weighted average (link has an example)

So...

(weight of lab)*(lab grade) + (weight of lecture)*(lecture grade) = final grade

(0.25)*(0.871) + (0.75)*(0.836) = final grade

0.84475 = final grade

So the final grade is roughly 84.475% (around B- or B, but it will depend on the teacher).

This is not taking into consideration any extra credit or things like the professor dropping your lowest quiz score. This is why it's best to ask the teacher directly as s/he is the only person who knows that grading system perfectly. However, 84.475% is a good estimate.
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