To find the width of the fence, we need to set up an equation based on the given information.
Let's denote the width of the garden as w.
Since the length of the garden is three times its width, we can say that the length of the garden is 3w.
The formula for the perimeter of a rectangle is P = 2l + 2w, where P is the perimeter, l is the length, and w is the width.
For this problem, the perimeter is given as 120 meters.
So, we can set up the equation:
120 = 2(3w) + 2w
Now, let's simplify and solve for w:
120 = 6w + 2w
120 = 8w
Dividing both sides of the equation by 8, we find:
w = 15
Therefore, the width of the fence is 15 meters.
Gabriella needs 120
meters of fence to surround a rectangular garden.
The length of the garden is three times its width, w
.
How wide is the fence?
1 answer