document.write( "Question 55504: A patch of lily pads doubles its size each day after it starts growing in the pond. If a pond was completely covered just today, what part of it was covered in lily pads five days ago? \n" ); document.write( "
Algebra.Com's Answer #37727 by stanbon(75887)\"\" \"About 
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\n" ); document.write( "yesterday 1/2 of the pond was covered
\n" ); document.write( "day before that (1/2)of (1/2) or 1/4th was covered.
\n" ); document.write( "day before that 1/8th was covered
\n" ); document.write( "etc.
\n" ); document.write( "5 days before (1/2)^5 = 1/32 nd of the pond was covered.
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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