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natima [27]
3 years ago
10

The length of a rectangle is 2 inches less than 3 times the number of inches in its width. If the perimeter of the rectangle is

28 inches, what is the width and length of the rectangle?
Mathematics
1 answer:
Naily [24]3 years ago
6 0
Perimeter = 2L + 2w
in this case, L = 3w - 2 and perimeter = 28.
so, 28 = 2L + 2w.  or 14 = L + w.  or substitute for L: (3w - 2) +w =14 
or 4w - 2 = 14.  4w = 12. 12/4 = 3 = w.
The width = 3 inches; and the length = (3x3 -2) 7 inches.
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