The perimeter of a rectangle is 142m. The length is 2m more than twice the width. Find the dimensions.

Equation:

(2w+2) + w + (2w+2) + w

Combine Like Terms:

6w+4=142 m (since that's our perimeter)

Subtract 4 from both sides:

6w=138

Divide 6 from both sides

w=23

To find the length ... Plug in our width into our "length" equation

(2 (23) + 2)

46+2

l=48

Final Answer:

w=23

l=48