## Algebra 1

Published by Prentice Hall

# Chapter 2 - Solving Equations - 2-6 Ratios, Rates, and Conversions - Practice and Problem-Solving Exercises - Page 121: 9

#### Answer

Olga had the fastest average speed.

#### Work Step by Step

In order to find average speed, we divide the total distance traveled by the amount of time it took to travel that distance. Thus, we obtain: Trisha: $10km/2.5 hours=4$ km per hour Olga: $9.5km / 2.25 hours=4.22$ km per hour Jason: $7.5km/2 hours=3.75$km per hour Thus, we find that Olga had the fastest average speed.

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