SOLUTION: You have made scores of 81, 76, 82 on three quizzes. What is the least you can make on the fourth quiz to have an average of at least 80?
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Question 797684: You have made scores of 81, 76, 82 on three quizzes. What is the least you can make on the fourth quiz to have an average of at least 80?
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
In order to have an average of at least A on N scores, then the sum of all N scores must be A times N. Add the three scores you have and subtract the sum of the product 4 times 80.
John
Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
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