SOLUTION: The height of a rectangle is 4+y. The width is 9-2y. The perimeter is 20 cm. What is the area.

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Question 1076069: The height of a rectangle is 4+y. The width is 9-2y. The perimeter is 20 cm. What is the area.
Answer by jorel1380(3719) About Me  (Show Source):
You can put this solution on YOUR website!
The height is 4+y, and the width is 9-2y, so:
2(4+y)+2(9-2y)=20
8+2y+18-4y=20
y=3
The rectangle measures 7 cm by 3 cm, so its area is 21 cm.². ☺☺☺☺