SOLUTION: Ella has a average score of 82% on three of her tests. Her average score on the first two tests were 85%. What is the third test score percentage? I worked the problem out and

Question 273100: Ella has a average score of 82% on three of her tests. Her average score on the first two tests were 85%. What is the third test score percentage?
I worked the problem out and thought it was wrong so erased it, but when i read the problem again i got 75.6 and i cant quite remember how i got the answer can u refresh my memory?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Ella has a average score of 82% on three of her tests. Her average score on the first two tests were 85%. What is the third test score percentage?
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Equation:
2(0.85) + x = 3(0.82)
1.7 + x = 2.46
x = 0.76
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Ans: 76%
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Cheers,
Stan H.
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