Answer:
B. 150 ft
Step-by-step explanation:
Perimeter of a rectangle = 2(Length) + 2(Width)
Here, we are given the perimeter and width and we want to find the length
We can do so by plugging in what we are given into the perimeter formula and solving for length.
Perimeter = 2(Length) + 2(Width)
Perimeter = 450 and Width = 75
450 = 2(Length) + 2(75)
We now solve for length
==> simplify multiplication 2(75) = 150
450 = 2(Length) + 150
==> subtract 150 from both sides
300 = 2(Length)
==> divide both sides by 2
150 = Length
And we are done!
The answer is B 150ft
