Chapter 6.2, Problem 28E

To determine

To calculate : the number of Canadian dollars

Answer to Problem 28E

The number of Canadian dollars is $117$ CD

Explanation of Solution

Given information :

The question is:

In $2003$ the exchange rate between the United States and Canada was about $3$ Canadian dollars to $2$ U.S. dollars. Cindy had $78$ U.S. dollars to exchange when she visit Canada

Calculation : Write the conditions in equation

  $\frac{3\text{CD}}{2\text{USD}}=\frac{x}{78\text{USD}}$

Multiply $78$ to both sides

  $\begin{array}{l}\frac{3\text{CD}}{2\text{USD}}\times 78=\frac{x}{78\text{USD}}\times 78\\ x=\frac{3\times 78}{2}\\ x=117CD\end{array}$