Answer:
1)
c.
18,700
2)
a.
46,900
3)
a.
84,500
4)
a.
12,000
Step-by-step explanation:
1) 1 mile = 5280 ft.
Area of both sides = 5280 ft × 8 ft × 2 sides = 84480 ft²
Since 1 person for each 4.5 square feet, the ratio of one person to 1 square feet = [tex]\frac{1}{4.5}[/tex]
the size of a crowd = [tex]\frac{1}{4.5} *84480=18773.33[/tex] ≈ 18700
2) 1 mile = 5280 ft, therefore 2 mile = 10560 ft (5280 × 2)
Area of both sides = 10560 ft × 10 ft × 2 sides = 211200 ft²
Since 1 person for each 4.5 square feet, the ratio of one person to 1 square feet = [tex]\frac{1}{4.5}[/tex]
the size of a crowd = [tex]\frac{1}{4.5} *211200=46933.33[/tex] ≈ 46900
3) 1 mile = 5280 ft, therefore 2 mile = 10560 ft (5280 × 2)
Area of both sides = 10560 ft × 10 ft × 2 sides = 211200 ft²
Since 1 person for each 2.5 square feet, the ratio of one person to 1 square feet = [tex]\frac{1}{2.5}[/tex]
the size of a crowd = [tex]\frac{1}{2.5} *211200=84400[/tex] ≈ 84500
4) 1 yard = 3 ft, therefore 100 yard = 300 ft (100 × 3)
Area of both sides = 300 ft × 50 ft × 2 sides = 30000 ft²
Since 1 person for each 2.5 square feet, the ratio of one person to 1 square feet = [tex]\frac{1}{2.5}[/tex]
the size of a crowd = [tex]\frac{1}{2.5} *30000=12000[/tex]
