Answer:
The width of the rectangle is 15 inches.
Explanation:
Take I as the length of the rectangle and w as its width. Use the relationship between the length and the width and express the length in terms of the width.
![l = 1.5w](https://img.qammunity.org/2022/formulas/mathematics/college/es8h32qm27r2oj5pwupju0n2mgidy5be3j.png)
The perimeter of a shape is the sum of its sidelength, use this imformation to write a expression for the perimeter of the rectangle;
![p = 2l \: + 2w](https://img.qammunity.org/2022/formulas/mathematics/college/7tv6t260oggfk05x241m13c43x4hoerwo4.png)
Now, replace l for the expression in terms of the width and P for the given perimeter, then solve for w:
![75 = 2(1.5w) + 2w \\ 75 = 3 w + 2w \\ 75 = 5w \\ (75)/(5) = w \\ w = 15](https://img.qammunity.org/2022/formulas/mathematics/college/44lewslb6wi6fds0oofs6vdpm4xoui4h5c.png)
The width of the rectangle is 15 inches.