A rectangle length is 1 less than 3 times its width. Its perimeter is 70 yards. Write a model (the equation), identify the variable(s), and solve for the smallest possible dimensions for the rectangle.

L=3W - 1

2L+2W = 70

W=9, L=26

Step-by-step explanation:

Plug in the equation for length (L) for L in the equation for the perimeter and solve.

2(3W - 1) +2W = 70

6W - 2 +2W = 70

8W - 2 = 70

8W = 72

W=9

Plug in W in the equation for perimeter and solve for L.

2L+ 2(9) = 70

2L +18 = 70

2L = 52

L = 26

To check for correctness, plug in values W & L into the equation for length.

26 = 3 (9) - 1

26 = 27 -1

26 = 26

it's 42

Step-by-step explanation:

because you multiplying by 6