Basic College Mathematics (9th Edition)

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

Chapter 7 - Measurement - 7.1 Problem Solving with U.S. Measurement Units - 7.1 Exercises: 31

Answer

Snowmobile/ATV and Person walking

Work Step by Step

The thickness of the ice is given as (1 )/2 ft. To find what the ice lake will support in (1 )/2 ft thick ice layer, we need to convert feet into inches because in the bar graph the data is given in inches. 1/2 ft = --- inches You are converting from a larger unit to a smaller unit (a foot is longer than an inch), so multiply. Because 1 ft = 12 in., multiply by 12. 1/2 ft = 1/2 * 12/1 = 6 inches Since the thickness is 6 inches it will support Snowmobile/ATV and Person walking because the provided thickness is 5 in. and 4 in. which is less than 6 in.
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