the area of a rectangular room is 65 m^2. Find the perimeter of the room given that its length is 3 m more than thrice its width

Answer 1

Hmmm. If you had said three more than twice its width, I'd have immediately said the room was 5x13. But, now we have to use some algebra.

w(3w+3) = 65
w = 4.1815

for the perimeter, we want 2(w+3w+3)=39.452