## Algebra 1

Published by Prentice Hall

# Chapter 2 - Solving Equations - 2-10 Change Expressed as a Percent - Practice and Problem-Solving Exercises - Page 150: 38

About 4%

#### Work Step by Step

To find the percent error, subtract the approximate value from the exact value. In this problem, the approximate value is given to us: 105. The exact value can be found using the actual dimensions of the prism: 7.2 $\times$ 4.6 $\times$ 3.3 = 109.296 Subtract the approximate value from the exact value: 109.296 - 105 = 4.296 The percent error is therefore about 4%.

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