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9 April, 09:40

The mean of 5 scores is 7. When an extra score is included, the new mean is 8. What is the extra score?

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Answers (2)
  1. 9 April, 11:06
    0
    7 7 a a a as a as a a a a. A a a a a a a a. A. A a. A a
  2. 9 April, 12:31
    0
    13

    Step-by-step explanation:

    Mean of 5 scores = 7

    Sum of 5 scores = 7*5 = 35

    New mean = 8

    Sum of 6 scores = 8 * 6 = 48

    Extra score = 48 - 35 = 13
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