A rectangle has a perimeter of 50 m and a length of 15 m. What is the width?

To find the width of the rectangle, you can use the formula for the perimeter of a rectangle, which is given by:

Perimeter = 2 * (length + width)

In this problem, you know the perimeter is 50 m and the length is 15 m. You can set up the equation as follows:

50 = 2 * (15 + width)

First, divide both sides of the equation by 2:

25 = 15 + width

Next, subtract 15 from both sides to isolate the width:

25 - 15 = width

This simplifies to:

width = 10 m

Therefore, the width of the rectangle is 10 m, which aligns with one of the provided answer choices. This demonstrates how you can effectively use the perimeter formula to solve for an unknown dimension of the rectangle.