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8 March, 14:54

The mean of Julie's first five quiz scores is 77 what score does Julie need on the six quiz to raise her averaged 80

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Answers (2)
  1. 8 March, 17:50
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    The answer is 83 ... Since we aren't given the rest of the numbers, we use 77 and we use guess and check till we get to 83. 77 + 83=160 divided by 2 is her desired average of 80 ...
  2. 8 March, 18:29
    0
    She would need about a 90 or so.
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