Gabrielle rows a boat downstream for 99 miles. The return trip upstream took 24 hourslonger. If the current flows at 4 mph, how fast does Gabrielle row in still water?She rowsmphQuestion Help: Message instructor Russell went on a bike ride of 72 miles. He realized that if he had gone 12 mph faster, hewould have arrived 8 hours sooner. How fast did he actually ride?Russell rodemph on his trip.Question Help: Message instructor

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Gabrielle rows a boat downstream for 99 miles. The return trip upstream took 24 hours longer. If the current flows at 4 mph, how fast does Gabrielle row in still water? She rows mph

Elementary Algebra

17th Edition

ISBN:9780998625713

Author:Lynn Marecek, MaryAnne Anthony-Smith

Publisher:Lynn Marecek, MaryAnne Anthony-Smith

Chapter8: Rational Expressions And Equations

Section8.8: Solve Uniform Motion And Work Applications

Problem 8.164TI: Tony drove 4 hours to his home, driving 208 miles on the interstate and 40 miles on country roads....

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Concept explainers

Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.

Question

Gabrielle rows a boat downstream for 99 miles. The return trip upstream took 24 hours
longer. If the current flows at 4 mph, how fast does Gabrielle row in still water?
She rows
mph
Question Help: Message instructor

Russell went on a bike ride of 72 miles. He realized that if he had gone 12 mph faster, he
would have arrived 8 hours sooner. How fast did he actually ride?
Russell rode
mph on his trip.
Question Help: Message instructor

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