document.write( "Question 1040383: Bacteria X has a growth rate of 160 % per hour. Some amount of bacteria X are accidentally introduced into some fruit salad. Two hours after contamination, there were 40,000 bacteria X in the fruit salad. \r
\n" ); document.write( "\n" ); document.write( "Find the initial number of bacteria X introduced into the fruit salad:
\n" ); document.write( "________bacteria \r
\n" ); document.write( "\n" ); document.write( "Estimate the number of bacteria in the food 3 hours after contamination.
\n" ); document.write( "________bacteria
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Algebra.Com's Answer #655253 by ankor@dixie-net.com(22740)\"\" \"About 
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Bacteria X has a growth rate of 160 % per hour.
\n" ); document.write( " Some amount of bacteria X are accidentally introduced into some fruit salad.
\n" ); document.write( " Two hours after contamination, there were 40,000 bacteria X in the fruit salad.
\n" ); document.write( " Find the initial number of bacteria X introduced into the fruit salad:
\n" ); document.write( "let Ao = initial amt of bacteria
\n" ); document.write( "t = 2 hrs
\n" ); document.write( "1.6 = the decimal form of 160% increase
\n" ); document.write( "Ao*1.6^2 = 40000
\n" ); document.write( "using the calc
\n" ); document.write( "Ao*2.56 = 40000
\n" ); document.write( "Ao = 40000/2.56
\n" ); document.write( "Ao = 15625 amt of bacteria initially
\n" ); document.write( ":
\n" ); document.write( "Estimate the number of bacteria in the food 3 hours after contamination.
\n" ); document.write( "A = 15625*1.6^3
\n" ); document.write( "A = 15625*4.096
\n" ); document.write( "A = 64000 after 3 hrs
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