In a class in which the final course grade depends entirely on the average of four equally weighted 100-point tests, Alice has scored 8484, 9494, and 7979 on the first three. What range of scores on the fourth test will give Alice a B for the semester (an average between 8080 and 8989, inclusive)? Assume that all test scores have a non-negative value. Express your answer in interval

In a class in which the final course grade depends entirely on the average of four equally weighted 100-point tests, Alice has scored 8484, 9494, and 7979 on the first three. What range of scores on the fourth test will give Alice a B for the semester (an average between 8080 and 8989, inclusive)? Assume that all test scores have a non-negative value. Express your answer in interval

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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