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Plzzz Help it’s due in 15min!!!!! A farmer wants to increase the area of his rectangular pen but keep the pen a rectangular shape. He decides to add 2 feet of
fencing to the width of the pen, but the length will remain 9 feet. The new area will be 108 square feet
Which equation can be used to determine the onginal width, w of the pen?

Respuesta :

Melody08

Answer:

w=10

Step-by-step explanation:

Let original width of pen be w feet.

New width of pen = (w+2) feet

(w+2)×9=108

     w+2=108÷9

            =12

         w=12-2

            =10

srlt2

Answer:

9(w + 2) = 108

Step-by-step explanation:

A = l * w = 9w

A' = l * w' = 9w' = 9(w + 2) = 108

The original width, w, of the pen was 10 feet. Thus, the original area was 9 * 10 = 90 feet.

The final width was 10 + 2 = 12 feet

12 * 9 = 108