SOLUTION: A pond is a half acre and is frozen over. The depth of ice covering pond is 2 in. Determine weight of ice. Ice weighs 57.4 lbs. per cu. ft. Half acre = 21780 sq. ft. Not s

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Question 1170676: A pond is a half acre and is frozen over. The depth of ice covering pond is 2 in. Determine weight of ice. Ice weighs 57.4 lbs. per cu. ft.
Half acre = 21780 sq. ft.
Not sure how to solve.
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!


given:
A pond is a half acre and is frozen over.
The depth of ice covering pond is 2in.
Ice weighs 57.4lb. per cu.+ft.
Half acre = 21780ft%5E2.
we need a volume of ice
2in ocvert to ft: 2in=%282%2F12%29ft=%281%2F6%29ft
21780ft%5E2%281%2F6%29ft=%2821780%2F6%29ft%5E3=3630ft%5E3

since ice weighs 57.4lb%2Fft%5E3. per cu.+ft, we have
%2857.4lb%2Fcross%28ft%5E3%29%29%2A3630cross%28ft%5E3%29=57.4lb%2A3630=208362lb
the weight of ice is 208362lb