SOLUTION: Jason has an average grade of 85 on his first 8 quizzes. After his 9th quiz, his average grade was 81. What grade did Jason get on his ninth quiz
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Question 759109: Jason has an average grade of 85 on his first 8 quizzes. After his 9th quiz, his average grade was 81. What grade did Jason get on his ninth quiz Answer by Cromlix(4381) (Show Source):
You can put this solution on YOUR website! Average grade of 85 on 8 quizzes
85*8 = 680
Average grade of 81 on 9 quizzes
= 81*9 = 729
= 729 - 680
= 49
So Jason scored 49 on his 9th quiz.
Hope this helps.
:-)
