SOLUTION: A rectangle has width the same as a side of a square whose perimeter is 20 m. The length of the rectangle is 9m. Find the perimeter of this rectangle

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Question 861283: A rectangle has width the same as a side of a square whose perimeter is 20 m. The length of the rectangle is 9m. Find the perimeter of this rectangle
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
The rectangle, dimensions x and 9. Perimeter would be 2x%2B2%2A9=2x%2B18.

The rectangle's width is x while its length is 9.


The square uses side length x also, and perimeter is 4x=20; meaning highlight%28x=5%29.

Back to perimeter of the rectangle,
2%2Ax%2B18
2%2A5%2B18
10%2B18
highlight%2828%29, the perimeter of the rectangle.