Question

the length of the rectangular garden is three feet less than twice its width. if the perimeter is 42 feet, what is its length?

Answer 1

Answer:

13 feet

Step-by-step explanation:

Define x :

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Let the width be x.

Width = x

Length = 2x - 3

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Perimeter Formula :

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Perimeter = 2 (Length + Width)

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FInd Width :

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42 = 2 (x + 2x - 3) 

42 = 2(3x - 3)

42 = 6x - 6

48 = 6x 

6x = 48

x = 8 feet

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Find Length :

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Length = 2x - 3 = 2(8) - 3 = 13 feet

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Answer: The length is 13 feet.