SOLUTION: 8 scores have an average of 6, adding scores of 15 and x make the average 7, what is x

Algebra ->  Average -> SOLUTION: 8 scores have an average of 6, adding scores of 15 and x make the average 7, what is x      Log On


   

Question 804205: 8 scores have an average of 6, adding scores of 15 and x make the average 7, what is x
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
(8*6+15+x)/10=7
(8*6+15+x)=70
48+15+x=70
x=7