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Oksi-84 [34.3K]
2 years ago
12

The length of a rectangle is four times its width.

Mathematics
1 answer:
laila [671]2 years ago
5 0

Answer:

Length: 40 inches

Width: 10 inches

Step-by-step explanation:

Let x = width of the rectangle.

From the information "length of a rectangle is four times its width", we can express the length as:

Length = 4x

- - - -

Perimeter = 2l+2w (formula for perimeter of rectangle)

100=2(4x)+2(x)

100=8x+2x

10x=100 (combine like terms)

x=10 inches

∴ The width of the rectangle is 10 inches.

To find the length of the rectangle, we can use substitution:

Length = 4x

=4(10)

=40 inches

∴ The length of the rectangle is 40 inches.

Hope this helps :)

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Step-by-step explanation:

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