The Johnsons framed a family picture to hang on the wall. The perimeter of the frame is 72 inches. Use the formula P = 2ℓ + 2w to find the length of the frame if the width is 19 inches.

Respuesta :

2l + 2w = 72
2l + 2(19) = 72
2l + 38 = 72
2l = 34
l = 17

Hope this helps!