Find the area of the gym and divide that by the required space.
Area of gym: 300 x 300 = 90,000 square feet.
Number of people: 90,000 / 4 = 22,500
They can sell 22,500 tickets.
22,500 tickets can be sell by the school for the dance.
Area is the quantity that expresses the extent of a region on the plane or on a curved surface. The area of a plane region or plane area refers to the area of a shape or planar lamina, while surface area refers to the area of an open surface or the boundary of the three-dimensional object.
Now the given dimension of the gym is 300ft by 300ft.
So area of the gym = 300 x 300 ft²
⇒area of the gym = 90,000 ft²
Since fire marshal requires 4 square feet per person.
Therefore,
Number of seats = area of the gym/area require by file marshall
⇒Number of seats = 90,000/4
⇒Number of seats = 22,500
Hence,22,500 tickets can be sell by the school for the dance.
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