SOLUTION: In a College Algebra class, the final exam is 20% of the course grade. If Greg's regular exam scores are 80, 64, 88, 92 and 85, what does he need on the final exam to make a B (

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Question 616209: In a College Algebra class, the final exam is 20% of the course grade. If Greg's regular exam scores are 80, 64, 88, 92 and 85, what does he need on the final exam to make a B (80%) in the course?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi, 

Greg's regular exam scores are 80, 64, 88, 92 and 85...avg = 409/5 = 81.8%

the final exam is 20% of the course grade

 .80*81.8 + .20x ≥ 80

               x ≥ 72.8%