SOLUTION: Determine in terms of inequality the average scores of a student who got 82,76 and 78 on first 3 tests and derive his marks in the fourth test, whose average should be 80.

Question 340487: Determine in terms of inequality the average scores of a student who got 82,76 and 78 on first 3 tests and derive his marks in the fourth test, whose average should be 80.
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

Hint: In order to have an average of 80 on 4 tests, the sum of his scores must be 4 times 80 = 320. He has 236 total so far (82 + 76 + 78).

John

My calculator said it, I believe it, that settles it

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