document.write( "Question 774820: An average family of four uses roughly 1200 liters (about 300 gallons) of water per day. (One liter = 1000 cm3.) How much depth would a lake lose per year if it uniformly covered an area of 82 square kilometers and supplied a local town with a population of 59,000 people? Consider only population uses, and neglect evaporation and so on.
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Algebra.Com's Answer #472490 by josgarithmetic(39620)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "1200*365=liters of water used in 1 year\r
\n" ); document.write( "\n" ); document.write( "\"82%2Ah=1200%2A365\", these volumes are equal: the portion of lake volume and the usage of water, having h = the depth of this quantity of water.\r
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\n" ); document.write( "\n" ); document.write( "59000 people may mean on average, 59000/4=14800 average family households for this quantity of water.
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