Asked Sep 18, 2019

So far, Walter has scores of 18, 17, 19, and 21 points for the first four science quizzes. What does he need to score on the next quiz in order to achieve an average(mean) score of 20 points per quiz?

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Walter scores of first four science quiz...

Considerx is the score of next quiz.

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Considerx is the score of next quiz.


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