SOLUTION: a student has scores of 76,72, and 75 on three exams. what minimum score is needed on a fourth fourth exam to make an average 80 or better?

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Question 337050: a student has scores of 76,72, and 75 on three exams. what minimum score is needed on a fourth fourth exam to make an average 80 or better?
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
(76+72+75+x)/4=80
223+x=320
x=97