If a student has an average exam score between 70 and 79, he will earn a grade of C in his algebra course. Suppose he has three exam scores of76,64,and85and that his teacher said the final exam score has twice the weight of the other three exams. What range of scores on the final exam will result in him earning a grade of C?

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Algebra: Structure And Method, Book 1

(REV)00th Edition

ISBN:9780395977224

Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Chapter3: Solving Equation And Problems

Section3.6: Problem Solving: Using Charts

Problem 2OE

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If a student has an average exam score between 70 and 79, he will earn a grade of C in his algebra course. Suppose he has three exam scores of

76,

64,

and

and that his teacher said the final exam score has twice the weight of the other three exams. What range of scores on the final exam will result in him earning a grade of C?

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