SOLUTION: I have a 66% in my college algebra class and I might have failed the final that is worth 20%. Does that mean I failed the class?

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Question 822950: I have a 66% in my college algebra class and I might have failed the final that is worth 20%. Does that mean I failed the class?
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
The final is worth 20%, so the rest of the classwork is 100 - 20 = 80% of your grade.

Let's assume 60% is a passing grade.

Let x = score on final

(weight of final)*(score on final) + (weight of class work)*(score on classwork) = passing grade

0.20*x + 0.80*0.66 = 0.60

0.20*x + 0.528 = 0.60

0.20*x = 0.60 - 0.528

0.20*x = 0.072

x = 0.072/0.20

x = 0.36

So if 60% is a passing overall score, then you can get a 36% on the final or more, to get an overall grade of 60% or more.

Special Note: Your professor may have special grading practices/methods. For instance, s/he may curve the scores or may drop your lowest score. So it's best to ask the teacher about this sort of thing.