



 
Phillip, I am going to find the distance in yards and then multiply by 3 to convert it to feet. The width of 12 feet is 12/3 = 4 yards and the depth of 4 inches is 4/36 = 1/9 yards. If the length is L yards then the volume of dirt is
You have 15 cubic yards and hence
Multiplying each side by 9/4 gives
or
Thus L = 3 × 33.75 = 101.25 feet. Penny  


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