Mathematics, 10.02.2021 14:00 esta54
8. William got scores of 91, 92, and q3 on three quizzes.
a. Write a formula for the average x of all three quizzes.
b. William got an 85 and an 88 on the first two quizzes.
What formula can William use to determine the score he needs on the third quiz to get an average of 90?
What score does he need?​
Answers: 1
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8. William got scores of 91, 92, and q3 on three quizzes.
a. Write a formula for the average x of a...
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