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The perimeter of the backyard shown in the diagram below is 271 feet.


A four-sided closed figure is shown. The lengths of the sides are twelve times d plus four, four-fifths times d minus nine, two times d, and four times d minus six.

Write an equation in simplest form that represents the perimeter of the backyard in feet.

Part B. What is the value of d?


Sagot :

Answer:

A) 18.8d - 11 = 271

B) d = 15

Step-by-step explanation: