## Algebra 1

Published by Prentice Hall

# Chapter 4 - An Introduction to Functions - 4-1 Using Graphs to Relate Two Quantities - Standardized Test Prep - Page 239: 23

$11.32 #### Work Step by Step The Formula to find the percent increase is the following:$\frac{Change}{Original}$The original is 8.50 per hour. The raise is to 9.35 per hour.$\frac{9.35-8.50}{8.50}=0.10$This results in a 10% increase. When you get another 10% increase you would find the increase pay 9.35 x 1.10(+10%) and you would get 10.285. Round off to 10.29 since dollars only measure to the hundredths place. Then another %10 increase 10.29 x 1.10 = 11.3135 or$11.32.

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