SOLUTION: I have a 77% in my class. My final was worth 20% of my grade. What is my new grade if I got a 45% on my exam?

Question 934294: I have a 77% in my class. My final was worth 20% of my grade. What is my new grade if I got a 45% on my exam?
Answer by Theo(13342) (Show Source): You can put this solution on YOUR website!
you got a 45% on your final.
you had 77% going in to the final.
the final is worth 20% of your grade.
this means the 77% was worth 80% of your grade, since 80% plus 20% = 100% of your grade.
.80 * 77% + .20 * 45% = 70.6%
as far as i can see, your final grade should be equal to 70.6% if that's all that goes into it.

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