SOLUTION: My sons math question is: Krishan wants his quiz average to be at least 90 so that he can get an A in the class. His current quiz scores are: 80, 100, 85. What does he have to ge
Algebra ->
Average
-> SOLUTION: My sons math question is: Krishan wants his quiz average to be at least 90 so that he can get an A in the class. His current quiz scores are: 80, 100, 85. What does he have to ge
Log On
Question 270978: My sons math question is: Krishan wants his quiz average to be at least 90 so that he can get an A in the class. His current quiz scores are: 80, 100, 85. What does he have to get on his next quiz to have an average of 90?
A 85 B 90 C 92 D 95
I know how to solve it the long way, plugging in each number until I find the average...isn't there a short cut to it? Answer by vleith(2983) (Show Source):
(