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Zielflug [23.3K]
3 years ago
11

A rectangle has a length 3 times the width. What is the perimeter in terms of x?

Mathematics
1 answer:
Marina CMI [18]3 years ago
7 0

Answer:

Perimeter is equal to all four sides added together.

Length = 3W; L=3W

So

P = 2(W) + 2(L)  substitute the equation for length above you get

P = 2(W) + 2(3W)  and combine

P = 2W + 6W = 8W; put in what the perimeter is and solve for W

66 = 8W, so W = 8.25

W = 8.25, L = 24.75

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