SOLUTION: Jasmine scored 75, 80 and 60 on her quizzes, if she wants an 80% in the class what should her next score be?

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Question 835782: Jasmine scored 75, 80 and 60 on her quizzes, if she wants an 80% in the class what should her next score be?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
The average is the sum of the scores divided byt the number of scores.
Let's say her next score is S.
A=%2875%2B80%2B60%2BS%29%2F4=80
75%2B80%2B60%2BS=320
Now solve for S to see if she can reach her goal.