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19-03-2021
Mathematics

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Michelle's quiz grades are 73, 75, 89, and 91. What score on her fifth quiz will make her average quiz grade at least 85?

Respuesta :

19-03-2021

Answer:

in order to have an average of 85 on 5 tests, she needs to score a total of 85x5.

that's 425 points.

on the first 4 quizzes, she has earned 328 points.

she needs to score 97 points on the 5th quiz to average 85.

she needs to study very hard!

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