Basic College Mathematics (9th Edition)

Published by Pearson
ISBN 10: 0321825535
ISBN 13: 978-0-32182-553-7

Chapter 2 - Multiplying and Dividing Fractions - 2.7 Dividing Fractions - 2.7 Exercises: 48

Answer

(a) 228 miles (b) 57 miles

Work Step by Step

(a) To find the number of miles traveled, we multiply the fraction $4/5$ by the total trip length ($285$ miles): $\frac{4}{5}*285=\frac{4*285}{5}=\frac{4*57}{1}=228$ miles (b) To find the number of miles that remain, we subtract the miles travelled from the total trip length: $285-228=57$ miles
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