## Elementary Technical Mathematics

Published by Brooks Cole

# Chapter 1 - Section 1.1 - Review of Basic Operations - Exercise: 16

8 ft

#### Work Step by Step

Find the total length of the first 3 pieces. $l=4+5+7=16$ Subtract the total of the 3 pieces from the original length to find the length of the remaining piece. $l=24-16=8$

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