Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 9 - Measurement - 9.1 Measuring Length; The Metric System - Exercise Set 9.1: 98

Answer

7 hm

Work Step by Step

First we can convert 7000 dm to units of meters. We know that 1 meter = 10 dm, so we can move the decimal point one place to the left. $7000 ~dm = 700 ~m$ Now we need to move the decimal point two places to the left. Therefore, we need to use a unit that is equal to 100 m and this unit is $hm$ (hectometer). We know that 1 hm = 100 m. We can convert 700 m to units of hm. $700~m = 7~hm$ $7000~dm = 700~m = 7~hm$
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