Question

The length of a rectangle is 3 times the width. The difference between the length and the width is 8 feet. Determine the rectangle’s length.

Answer 1

12 feet.

Explanation:

we are given some information about the length and width of a rectangle.

first, let w be width and l be length.

we have the system of equations:

`l = 3w \\ l - w = 8`

we substitute the expression for l into the 2nd equation: 3w - w = 8.

this simplifies to 2w = 8 and dividing both sides gives w = 4.

since length is triple the width, we have length = 12 feet.