SOLUTION: lisa has an average of 88 on 8 math tests. what grade must she score on the next test to bring her final average to 90?
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Question 834284: lisa has an average of 88 on 8 math tests. what grade must she score on the next test to bring her final average to 90?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Let A through H be the grades on her first 8 tests,
Now adding the next test, S,
I hope they give 6 extra credit points.
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