## Elementary Algebra

Published by Cengage Learning

# Chapter 4 - Proportions, Percents, and Solving Inequalities - Chapter 4 Review Problem Set - Page 183: 1

#### Answer

The top speed of his car is 99.2 miles per hour.

#### Work Step by Step

To express the speed in miles per hour, we need to multiply it by the ratio that converts kilometers to miles. The ratio that converts kilometers to miles is : $\frac{0.62\ mile}{1\ kilometer}$ $\frac{160\ kilometers}{hour}$ $\times$ $\frac{0.62\ mile}{1\ kilometer}$ = $\frac{160\ \times\ 0.62mile}{hour}$ = $\frac{99.2\ miles}{hour}$ = 99.2 miles per hour The top speed of his car is 99.2 miles per hour.

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.