Answer:
9 inches
Step-by-step explanation:
l = length
w = width
l = w + 3
the perimeter is the way one time fully around the rectangle. 2 times the length plus 2 times the width.
30 = 2×l + 2×w = 2×(w+3) + 2×w = 2w + 6 + 2w = 4w + 6
24 = 4w
w = 6 in
l = w + 3 = 6 + 3 = 9 in
