SOLUTION: Anne earned scores of 15,12,14, and 9 on her first four Spanish quizzes. If Anne wants her mean test score to be 13 after five quizzes,what quiz score must she earn on her fifth qu

Algebra ->  Average -> SOLUTION: Anne earned scores of 15,12,14, and 9 on her first four Spanish quizzes. If Anne wants her mean test score to be 13 after five quizzes,what quiz score must she earn on her fifth qu      Log On


   

Question 864493: Anne earned scores of 15,12,14, and 9 on her first four Spanish quizzes. If Anne wants her mean test score to be 13 after five quizzes,what quiz score must she earn on her fifth quiz
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
(15+12+14+9+x)/5=13
50+x=13*5
50+x=65
x=65-50
x=15