document.write( "Question 947376: A swimming pool with a water level of 60 inches is being emptied by a pump. For every 100 gallons that are pumped out, the water level decreases one inch. I need to write an algebraic formula for the depth of water in the pool, in inches. \n" ); document.write( "
Algebra.Com's Answer #578093 by josgarithmetic(39620)\"\" \"About 
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\"100%2A%28gallons%2Finch%29\" will become a slope in the equation.\r
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\n" ); document.write( "\n" ); document.write( "Independant variable x, may be depth in the pool in inches.\r
\n" ); document.write( "\n" ); document.write( "x=0, y=0 if y is volume in gallons.
\n" ); document.write( "x=60, y=60*100=6000 gallons.
\n" ); document.write( "If x remains a variable, then y=100x.
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