Problema Solution
The perimeter of a rectangle is 30ft. The length of the rectangle is four times the width. Find the length of the rectangle.
Answer provided by our tutors
We will use the general equation for perimeter of a rectangle that says:
perimeter=2w+2l
where l=4w and perimeter=30ft. Plugging these in, we get:
30=2w+2(4w)
30=10w
w=3ft
l=4(3)
l=12 ft