8. William got scores of 91, 92, and q3 on three quizzes. a. Write a formula for the average x of all three quizzes. Enter your answer. CHECK ANSWER I 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?
8. William got scores of 91, 92, and q3 on three quizzes. a. Write a formula for the average x of all three quizzes. Enter your answer. CHECK ANSWER I 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?
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter2: Solving Equations
Section2.1: Properties And Operations
Problem 6PSQ
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