SOLUTION: Your scores on your math tests have been 86 and 89. What possible grades can you make on your next test to have an average between 84 and 90 inclusive?
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Question 923642: Your scores on your math tests have been 86 and 89. What possible grades can you make on your next test to have an average between 84 and 90 inclusive?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
3•84 = 252 and 3•90 = 270
86 + 89 = 175
.......
252 < x + 175 < 270
77 < x < 95
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