solve each problem by setting up and solving an appropriate equation or inequality. Rex has scores of 85, 92, 87, 88, and 91 on the first five exams. What score must he get on the sixth exam to have an average of 90 or better for all six exams?
solve each problem by setting up and solving an appropriate equation or inequality. Rex has scores of 85, 92, 87, 88, and 91 on the first five exams. What score must he get on the sixth exam to have an average of 90 or better for all six exams?
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
Chapter4: Polynomials
Section4.10: Problems Without Solutions
Problem 9P
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solve each problem by setting up and solving an appropriate equation or inequality. Rex has scores of 85, 92, 87, 88, and 91 on the first five exams. What score must he get on the sixth exam to have an average of 90 or better for all six exams?
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