Question

traffic signs are regulated by the Manual on Uniform traffic control devices ( MUTCD) The perimeter of some traffic sign must be 128 inches, also, its lenght is 10inch longer than its width. find the dimensions of this sign

Answer 1

For perimeter: P = 2L + 2W
L = W + 10
128 = 2L + 2W
64 = L + W
64 = (W+10) + W
54 = 2W
W = 27

So the width will be 27 inches and the length will be 27 + 10 = 37 inches.