SOLUTION: Your test grades are 87, 75, 85 and 95. What is the lowest grade you can get on the next test and still maintain at least and 85 average?

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Question 610747: Your test grades are 87, 75, 85 and 95. What is the lowest grade you can get on the next test and still maintain at least and 85 average?
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
87 + 75 + 85 + 95 + x = 5 * 85