SOLUTION: The perimeter of a rectangle is 50 cm. The length is 7 cm more than the width. Find the dimensions of the rectangle.

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Question 122505: The perimeter of a rectangle is 50 cm. The length is 7 cm more than the width. Find the dimensions of the rectangle.
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

Given:
P+=+50+cm
The length Lis 7+cm more than the width W…=> L=+W+%2B+7cm

P+=+L+%2AW
50+cm+=+2%28L+%2B+W%29
50+cm+=+2%28W+%2B+7cm+%2B+W%29
50+cm+=+2%282W+%2B+7cm%29
25+cm+=+2W+%2B+7cm
25+cm+-+7cm+=+2W+
18+cm+=+2W+
W+=+9+cm+
…=> L=+9+cm+%2B+7cm
L=+16+cm+

Check:
50+cm+=+2%2816+cm+%2B+9+cm%29
50+cm+=+2%2825cm%29
50+cm+=+50cm