## Algebra 2 Common Core

Published by Prentice Hall

# Chapter 2 - Functions, Equations, and Graphs - 2-2 Direct Variation - Practice and Problem-Solving Exercises - Page 72: 52

21 pedal strokes

#### Work Step by Step

First convert 357 inches to feet $357 in = 29.75 ft$ Set up a proportion to find $x$ pedal strokes $\frac{6}{29.75}=\frac{y}{100}$ Write the cross products $6(100)=29.75y$ Simplify $600=29.75y$ Divide both sides by 29.75 $\frac{600}{29.75}=\frac{29.75y}{29.75}$ Simplify $20.168=y$ About $21$ pedal strokes

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