document.write( "Question 478562: A biologist has 500 cells in a culture at the start of an experiment. Hourly readings indicated that the number of cells is doubling every hour. How many cells are present at the end of 4 hours? At the end of how many hours are 32,000 cells present?\r
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Algebra.Com's Answer #327961 by ankor@dixie-net.com(22740)\"\" \"About 
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A biologist has 500 cells in a culture at the start of an experiment.
\n" ); document.write( " Hourly readings indicated that the number of cells is doubling every hour.
\n" ); document.write( " How many cells are present at the end of 4 hours?
\n" ); document.write( " :
\n" ); document.write( "the formula:
\n" ); document.write( "A = Ao*2^t
\n" ); document.write( "where
\n" ); document.write( "A = resulting amt after t hrs
\n" ); document.write( "Ao = initial amt
\n" ); document.write( ":
\n" ); document.write( "A = 500*2^4
\n" ); document.write( "A = 500 * 16
\n" ); document.write( "A = 8000 cells after 4 hrs
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\n" ); document.write( "\"At the end of how many hours are 32,000 cells present?\"
\n" ); document.write( "500*2^t = 32000
\n" ); document.write( "2^t = \"32000%2F500\"
\n" ); document.write( "2^t = 64
\n" ); document.write( "What power of 2 is 64, 2*2*2*2*2*2 = 64
\n" ); document.write( "t = 6 hrs
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