SOLUTION: vicky has misplaced one of her algebra quizzes. the scores on the quizzes are 82, 71, 83, 91, and 78. she knows that the mean of all six quiz scores is 79.5. what is the score on t
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Question 485561: vicky has misplaced one of her algebra quizzes. the scores on the quizzes are 82, 71, 83, 91, and 78. she knows that the mean of all six quiz scores is 79.5. what is the score on the missing quiz? Found 2 solutions by John10, Edwin McCravy:Answer by John10(297) (Show Source):
You can put this solution on YOUR website! Let x be the missing score:
The mean is 79.5.
(82 + 71 + 83 + 91 + 78 + x)/6 = 79.5
Solve for x
John10:)
