SOLUTION: The contents of a one 40.0 pound bag of topsoil will cover 10.0 square feet of ground to a depth of 1.0 inch. How many bags of topsoil are required to cover a plot that measures 20

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Question 900530: The contents of a one 40.0 pound bag of topsoil will cover 10.0 square feet of ground to a depth of 1.0 inch. How many bags of topsoil are required to cover a plot that measures 200.0 meters by 300.0 meters to a depth of 4.00 cm?
Can you please show me how you go the answer?
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
The plot to be given topsoil has this volume:
200%2A300%2A%280.04%29%2Am%5E3=2400%2Am%5E3, but you want this in cubic feet.

Change the volume of needed topsoil into cubic feet:

%28%282400%2A10%5E6%29%2F%282.53%5E3%2A12%5E3%29%29%2Aft%5E3
highlight%2884804%29 cubic feet of topsoil needed.


How much topsoil is in one bag?
10%2Aft%5E2%2A%281%2F12%29%2Aft
highlight%285%2F6%29%2Aft%5E3%29-------that is for ONE bag of topsoil