15 people fit comfortably in a 9 feet by 9 feet area use this value to estimate the size of a crowd that is standing 10 feet deep on one side of the street 1 mile long

Respuesta :

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