Basic College Mathematics (9th Edition)

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

Chapter 7 - Measurement - 7.4 Problems Solving with Metric Measurement - 7.4 Exercises - Page 509: 9

Answer

The total length of 30 pieces of lead is 180cm. The cost per cm is $0.02.

Work Step by Step

Multiply to find the total length of the lead. $60mm\times30=1800mm$ Move the decimal to convert mm to cm. $1800mm=180cm$ Divide to find the cost per cm. $3.29 dollars\div180cm=0.018$
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