Basic College Mathematics (10th Edition)

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

Chapter 7 - Measurement - Review Exercises - Page 526: 27


The board is now 1.26m long.

Work Step by Step

Convert the length of the board that was removed to m. $78cm\times\frac{1m}{100cm}=0.78m$ Move the decimal to convert 4cm to 0,04m. 2m 4cm is 2.04m. Subtract the length that was cut off from the original length of the board to find the current length. $2.04m-0.78m=1.26m$
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