A stockpile of dirt is being stored at a construction site. The dirt is roughly shaped like a cone with a height of 45ft and a diameter of 60ft. What is the estimated volume of the dirt pile? A. 42,390
B. 127,110
C. 1,400
D. 380,000

A.

Step-by-step explanation:

The formula for the volume of a cone is

Where h is the height and r is the radius.

In this case, h = 45 ft and r = 60 /2 = 30.

The answer closest to this is A: 42,390.

use an equation of ratios to determine the amount of gas needed to fill the tank.

    0.2             0.8

  =    

288.75             x

                                                              231 gal

so, 0.2x = (0.8)(288.75 gal), and x = = 1155 gal.

                                                                0.2

it would take 1155 gal. to fill the tank.

the cost would be

1155 gal         $3

* = $3465   (answer)

      1           1 gal

hope this you