Answer:
Length = 15ft
Width = 12ft
Step-by-step explanation:
First, re-read the problem until you acknowledge it and can put it into your own words.
This is what I did:
Find the area of a rectangle by first finding the length and the width. Note that:
L = Length
W = Width
Find L and W
We will need formula:
P=2L+2W
A=LW
The length of a rectangle is 3 ft longer than its width :
L = 3 + W Equation [1]
"the perimeter of the rectangle is 30 ft" means
P = 54 Equation [2]
P = 54 = 2L + 2W
54 = 2(3+W) + 2W
54 = 6 + 2W + 2W
54 = 6 + 4W
48 + 4w
12 ft = w
L = 3 + W
L = 3 + 12
L = 15 ft
Area if needed
A = L*W
A = (12 ft)*(15 ft)
A = 180 sq ft
Kavinsky
