loddidoddi1
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# Gabriella wants to tile a room with an area of 320 square feet. The width of the room is 4/5 its length. What are the length and width of the room?

lenght - a width - b Area= a*b 320=ab b=4/5a 320=$4a^{2}/5$ 400=$a^{2}$ a=$\sqrt{400}$ a=20 b=16