SOLUTION: i have a 64,69,73 on test. What do I need to make on my next test to have a 70% in the class?

Algebra ->  Average -> SOLUTION: i have a 64,69,73 on test. What do I need to make on my next test to have a 70% in the class?      Log On


   



Question 469929: i have a 64,69,73 on test. What do I need to make on my next test to have a 70% in the class?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 
Hi,
Let x represent score on next test
(64 + 69 + 73 + x)/4 = 70
(64 + 69 + 73 + x) = 280
x = 280 - 206
x = 74