## Thinking Mathematically (6th Edition)

Published by Pearson

# Chapter 1 - Problem Solving and Critical Thinking - 1.2 Estimation, Graphs, and Mathematical Models - Exercise Set 1.2: 62

#### Answer

$W = 5 + 0.64 * x$

#### Work Step by Step

In 1970, $5\%$ of lawyers were women. In 2012, $32\%$ of lawyers were women. The provided yearly increase is $0.64\%$ per year. To use this information to write a mathematical model, we need to take the starting percentage in 1970 ($5\%$), and add it to the yearly increase ($0.64\%$) multiplied by the numbers of years passed after 1970. $W = 5 + 0.64 * x$

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