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3. Antoinette is building a rectangular pen with 78 feet of fencing. If the length of the pen is 5
feet longer than its width, what are the dimensions of the pen?
Width
Length


NUMBER 3

3 Antoinette is building a rectangular pen with 78 feet of fencing If the length of the pen is 5 feet longer than its width what are the dimensions of the pen W class=

Respuesta :

CoastsideDad

Answer:

length = 22

Width = 17

Step-by-step explanation:

78 = 2(w+5) + 2(w)

78 = 2w + 10 + 2w

78 = 4w + 10

68 = 4w

w = 17

l = 17 + 5 = 22

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