The length of a rectangle is 5 cm less than 3 times its width. If the?

Answer 1

W = width

3W - 5 = Length

Perimeter formula

P = 2L + 2W

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P = 2(3W - 5) + 2W

P = 6W - 6 + 2W

P = 8W - 6

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In order to solve the equation for the perimeter the sum of its sides must be known.

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Answer 2

Let the length of the rectangle be w cm Hence its length is 3w-5 According to the problem. 2(3w-5+w)=46 or,4w-5=46/2=23 or 4w=23+5=28 or w=28/4=7 therefore the width of the rectangle is 7 cm and its length is 3*7-5 or 16 cm ans