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Original Question
your test scores in one class are 80 and 88. what possible scores can you earn on your next test to have a test average between...Asked by samuel
Your test scores in one class are 84 and 88
What possible scores can you earn on your next test to have a test average between 86 and 90 ​inclusive?
Answers
Answered by
Reiny
86 < (84+88+x)/3 < 90
258 < 84+88+x < 270
86 < x < 98
258 < 84+88+x < 270
86 < x < 98
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