Answer
$50mins$
Work Step by Step
1. $1 $ km $=$ $0.6214$ miles
2. $ 10 km \times \frac{0.6214 miles}{1 km} \times \frac{1hr}{7.5 miles} \times \frac{60 min}{1hr} =49.7 min$
3. For the correct significant figures, round to $50min$.
Chemistry: A Molecular Approach (3rd Edition)
by Tro, Nivaldo J.
Published by
Prentice Hall
ISBN 10:
0321809246
ISBN 13:
978-0-32180-924-7
Chapter 1 - Sections 1.1-1.8 - Exercises - Problems by Topic - Page 40: 93
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