# Chapter 2 - Real Numbers - 2.3 - Real Numbers and Algebraic Expressions - Problem Set 2.3 - Page 69: 92

The average speed of the winner in 1978 was $29.404$ miles per hour faster than the average speed of the winner in 2011.

#### Work Step by Step

Subtract the average speed in 2011 from the average speed in 1978 $= 159.73 - 130.326$ $= 29.404$ miles per hr The average speed of the winner in 1978 was $29.404$ miles per hour faster than the average speed of the winner in 2011.

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