Posted by **Kathy** on Wednesday, March 2, 2011 at 9:25pm.

In the United States, water used for irrigation is measured in acre-feet. An acre-foot of water covers an acre to a depth of exactly 1 foot. An acre is 4840 yd^2.

If desalinated water costs $1950 per acre-foot, how much does desalinated water cost per liter?

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