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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 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?

Algebra and Trigonometry (6th Edition)
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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0 ← < Exit H a google classroom X 1-4: MathXL for S X 1-4: Do You Know How? DO YOU KNOW HOW? Enter your answer. s Savvas Realize X https://www.savvasrealize.com/assignments/viewer/classes/62e4177d624e3eb3108ebe24/assignments/85 8. William got scores of 91, 92, and 93 on three quizzes. a. Write a formula for the average x of all three quizzes. Type here to search 7 Mae'Kayla Latin CHECK ANSWER X 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? Mae'Kayla Latin 43 VR
Transcribed Image Text:0 ← < Exit H a google classroom X 1-4: MathXL for S X 1-4: Do You Know How? DO YOU KNOW HOW? Enter your answer. s Savvas Realize X https://www.savvasrealize.com/assignments/viewer/classes/62e4177d624e3eb3108ebe24/assignments/85 8. William got scores of 91, 92, and 93 on three quizzes. a. Write a formula for the average x of all three quizzes. Type here to search 7 Mae'Kayla Latin CHECK ANSWER X 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? Mae'Kayla Latin 43 VR
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