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21 October, 10:39

Larson has a score of 89 for each of his first three science

quizzes. The score on his fourth quiz is a 92. What score

does he need on the fifth quiz to have an average of exactly

90?

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Answers (2)
  1. 21 October, 13:11
    0
    Answer 91
  2. 21 October, 13:55
    0
    91%

    Step-by-step explanation:

    (89+89+89+92) / 4 = 89.75%

    To get exactly 90, he would need a 91% because a number between 89-92 is 91. Also, you can just guess and check on the calculator!
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