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jonny [76]
2 years ago
7

The length of a rectangle is (x - 9) feet. Its width is x feet. Write an expression you could use to find the perimeter

Mathematics
1 answer:
steposvetlana [31]2 years ago
6 0

Answer:

The expression for the perimeter of the rectangle is: P = 4x - 18

Step-by-step explanation:

Perimeter of a rectangle:

A rectangle has length l and width w. It's perimeter is given by:

P = 2(l + w)

In this question:

l = x - 9, w = x

So

P = 2(x - 9 + x) = 2(2x - 9) = 4x - 18

The expression for the perimeter of the rectangle is: P = 4x - 18

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