SOLUTION: An average score of 90 or above in a history class receives am A grade. You have scores of 91, 90, and 95 on three exams. Find the range of scores on the fourth exam that will give
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Question 790707: An average score of 90 or above in a history class receives am A grade. You have scores of 91, 90, and 95 on three exams. Find the range of scores on the fourth exam that will give you an A grade for the course. Answer by solver91311(24713) (Show Source):
If you want to average 90 on 4 tests, then the sum of your scores must be 4 times 90. Add the three scores you do have and subtract from the product of 90 and 4.
John
Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
