Question

the length of a rectangle exceeds three times its width by 9 if the perimeter is 66 find the width of the rectangle?
i need the answer today pls help

Answer 1

Answer: 6
Step by step:
W is width, l is length, p is perimeter
The perimeter of a rectangle is 2w+2l.
l=3w+9
2l=6w+18
2l+2w=8w+18
P=8w+18
66=8w+18
48=8w
W=6
Hope this helps.