## Elementary Algebra

Published by Cengage Learning

# Chapter 4 - Proportions, Percents, and Solving Inequalities - 4.3 - More on Percents and Problem Solving - Problem Set 4.3: 31

#### Answer

Hector should expect to get 28.32 miles per gallon.

#### Work Step by Step

We can use the following guideline to solve this problem, Current gas mileage + Increase = New gas mileage So, 24 + 18% $\times$ 24 = New gas mileage 24 + .18 $\times$ 24 = New gas mileage 24 + 4.32 = New gas mileage 28.32 = New gas mileage Hector should expect to get 28.32 miles per gallon.

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