Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10: 0134467795
ISBN 13: 978-0-13446-779-5

Chapter 7 - Measurement - 7.3 The Metric System - Capacity and Weight (Mass) - 7.3 Exercises - Page 502: 71


200 nickels are in 1kg of nickels.

Work Step by Step

Use ratios and cross multiplication to find the number of nickels. Ratios must use the same units of measure, so note that 1kg=1000g. $\frac{1\ nickel}{5g}=\frac{x\ nickels}{1000g}$ $(5)(x)=(1)(1000)$ $5x\div5=1000\div5$ $x=200$
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