Chapter 12, Problem 45CCSR

To determine

Find the width of rectangle.

Answer to Problem 45CCSR

  $4inches$ .

Explanation of Solution

Given information:

The width of a rectangle is $10inch,$ less than its length. If the perimeter of the rectangle is $36inch,$ .

Calculation:

Consider the given data,

Width of a rectangle is $10inch,$ less than its length,

  $\begin{array}{l}let,\\ width=x\\ length=x+10\\ Perimeter=36in.\\ Perimeter=2\left(width+length\right)\\ putthevaluesweget,\\ 36=2\left(x+x+10\right)\\ 18=\left(2x+10\right)\\ 2x=18-10\\ 2x=8\\ x=4\end{array}$

Hence, the width of rectangle is, $4inches$ .