Answer:
The estimate crow is 9777 people
Explanation:
A square of 9ft by 9 ft has an area of:
[tex]A=9ft\cdot9ft=81ft^2[/tex]In an area of 81ft, fit 15 people.
Now, lats see the area of one mile by 10ft.
There is 5280 ft in one mile.
Then, the area is:
[tex]A=5280ft\cdot10ft=52800ft^2[/tex]If we divide the two areas, we get a ratio:
[tex]\frac{52800ft^2}{81ft^2}\approx651.85[/tex]we got 651.85 squares of 81ft^2, and in each one fits 15 people. Thus:
[tex]651.85\cdot15=9777.75[/tex]Thus, the estimate is 9777 people in a mile by 10 ft