Answered: 4-Sally drove for 500 mi, the last 150…

4-Sally drove for 500 mi, the last 150 mi she decreased the speed by 35 mph. If her total driving was 9 hours. Find both speeds?

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

Chapter7: Applying Fractions

Section7.7: Mixture Problems

Problem 15P

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Estimation

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4-Sally drove for 500 mi, the last 150 mi she decreased the speed by 35 mph. If her total
driving was 9 hours. Find both speeds?

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