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?

Algebra ->  Average -> 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?      Log On


   

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) About Me  (Show Source):
You can put this solution on YOUR website!
Let A be the score of the fourth test,
%2879%2B88%2B93%2BA%29%2F4=90
260%2B4=360
A=100
You need a perfect score.