SOLUTION: quiz scores are 73,75,89 and 91. What scores on a 5th quiz will make the average85?

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Question 189016: quiz scores are 73,75,89 and 91. What scores on a 5th quiz will make the average85?
Answer by solver91311(24713) About Me  (Show Source):
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73, 75, 89, 91 plus the score on the 5th test must add up to 5 times 85.


John