## Elementary Technical Mathematics

Published by Brooks Cole

# Chapter 1 - Section 1.12 - Multiplication and Division of Decimal Fractions - Exercises - Page 73: 67

1290.24 lb

#### Work Step by Step

Multiply to find the weight. Note the cancellation of units in the numerators and denominators. $4.00\ ft\times8.00\ ft\times\frac{40.32\ lb}{1\ ft^2}=32\ ft^2\times\frac{40.32\ lb}{1\ ft^2}=1290.24\ lb$

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