document.write( "Question 1174303: The number of bacteria in two colonies, A and B, starts increasing at the same time. The number of bacteria in the colony A after t hours is modelled by the function- A(t)=12e^0.4t.\r
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Algebra.Com's Answer #799754 by ewatrrr(24785)\"\" \"About 
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document.write( " How long does it take for the number of bacteria in colony A to reach 400.\r\n" );
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document.write( "  A(t)=12e^0.4t  \r\n" );
document.write( "  400 = 12e^0.4t \r\n" );
document.write( " ln(400/12) = .4t\r\n" );
document.write( " ln(400/12)/.4 = t\r\n" );
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document.write( "Use Your calculator.  Important You are comfortable using it.\r\n" );
document.write( "Wish You the Best in your Studies.\r\n" );
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