At a physics convention, 10 companies set up equal sized square booths in a row along one wall of the convention center. The booths are adjacent to each other and a 4-ft wide walkway surrounds the block of booths on three sides. The total area of the booths and walkway is 2300 ft2. What is the side length of each booth?
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Question

At a physics convention, 10 companies set up equal sized square booths in a row along one wall of the convention center. The booths are adjacent to each other and a 4-ft wide walkway surrounds the block of booths on three sides. The total area of the booths and walkway is 2300 ft2. What is the side length of each booth?
GUYS HELP ME WITH THIS

anonymous · Answer

If I'm not mistaken:
You can get the length the wall by 10(l)+10(4)+4
The width of the wall would be l+4
so the surface area would be (10(l+4)+4)*(l+4)
Solve for l and you should get the correct answer.

anonymous · Answer

the length and with of the rectangle*