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29 November, 11:52

Your grades on four exams are 78, 85, 97, and 92

What grade do you need on the next exam to have an

average of 90 on the five exams?

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Answers (1)
  1. 29 November, 14:22
    0
    Let g = grade needed

    (78 + 85 + 92 + 97 + g) / 5 = 90

    Solve for g.
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