An irregular pile of earth is 15ft. high and covers 500sq ft. Its Mid-sections and level top are estimated to contain 400 and 200 sq. ft., respectively. Find the cost of removing it at 60 cents per load. If the tower measures 3 by 4 by 9 ft.
An irregular pile of earth is 15ft. high and covers 500sq ft. Its Mid-sections and level top are estimated to contain 400 and 200 sq. ft., respectively. Find the cost of removing it at 60 cents per load. If the tower measures 3 by 4 by 9 ft.
To find the volume of dirt, use the formula:
where is the height of the pile, is the area of the bottom, is the area of the mid-section and is the area of the top.
Then divide this volume by the volume of the "tower" to find how many loads there are, and multiply this by 60 cents to find the total cost of removing the dirt.