SOLUTION: Catarina scored 89 and 84 on her last two tests. What must she score on her next test to raise her mean score to a 90

Algebra ->  Average -> SOLUTION: Catarina scored 89 and 84 on her last two tests. What must she score on her next test to raise her mean score to a 90      Log On


   

Question 826078: Catarina scored 89 and 84 on her last two tests. What must she score on her next test to raise her mean score to a 90
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
(89+84+x)/3=90
173+x=90*3
x=279-173
x=97