SOLUTION: test score for semester are 79, 88, 93 and if test are equally weighted, what score must you should get on fourth test to have an average of 90?

SOLUTION: test score for semester are 79, 88, 93 and if test are equally weighted, what score must you should get on fourth test to have an average of 90?

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Question 336613: test score for semester are 79, 88, 93 and if test are equally weighted, what score must you should get on fourth test to have an average of 90?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Let A be the score of the fourth test,

You need a perfect score.

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