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Law Incorporation [45]
3 years ago
6

The length of a rectangle is one inch less than three times its width. If the perimeter of the rectangle is 54 inches, find the

length.
Mathematics
1 answer:
max2010maxim [7]3 years ago
5 0

Answer: 20;

w - width

3w - 1 - length

54 in - perimeter

w + w + (3w - 1) + (3w - 1) = 8w - 2 - perimeter

The equation:

8w - 2 = 54      add 2 to both sides

8w = 56     divide both sides by 8

w = 7

3w - 1 = 3(7) - 1 = 21 - 1 = 20

Answer: The length = 20 in.

Step-by-step explanation:

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