Answer: The width of the garden is 3.75 ft
Explanation:
The perimeter of the garden is calculated as follows;
Perimeter = 2L + 2W
Where L is the length and W is the width
However we have been given that the length is 15 ft, and the width is x (unknown).
Substituting for the values of the length and the width
Perimeter = 2L + 2W
37.5 = 2(15) + 2(x)
37.5 = 30 + 2x
Subtract 30 from both sides of the equation
7.5 = 2x
Divide both sides of the equation by 2
3.75ft = x