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Margot is sewing a ribbon on a seam along the perimeter of a square pillow. The side length of the pillow is 2x2 + 1 inches, and its perimeter is 4(2x2 + 1) inches. If x = 3.5, how much ribbon does she need?

 Nov 3, 2015
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Hmm... The question is a bit confusing. I think you mean:

Use the "sub" and "sup" to get base 2 or something raised to any power.

Margot is sewing a ribbon on a seam along the perimeter of a square pillow. The side length of the pillow is 2 x2 +1 inches, and its perimeter is 4(2x2 + 1) inches. If x = 3.5, how much ribbon does she need?

 

Pretty obvious. 4(2x2 + 1) inches = 4(2*3.5*3.5 + 1)

 

                                                      = 4(25.5)

                                                      = 102 inches

 

We 4th graders know that 4 times of one side of a square = perimeter.

 

You may need to improve this question a bit.

 

Margot is sewing a ribbon on a seam along the perimeter of a square pillow. The side length of the pillow is 2 x2 +1 inches, and its perimeter is 4(2x2 + 1) inches. If x = 3.5, how much ribbon does she need?

 Mar 31, 2016

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