The population of a bacteria culture doubles every 5 minutes. Approximately how many minutes will it take for the population to grow from 1,000 to 500,000 bacteria Select:
A) 10
B) 12
C) 14
D) 16
E) 45
This one's easy.   1000 * 2^t = 500,000   2^t = 500   Now gauging, since 2^8 = 256, then 2^9 = 512   So t = 9   But be careful, 't' is in time intervals of 5 minutes   So answer is 9*5= 
<gadget id="calculator">9*5</gadget>
<output>45</output>
45 minutes   Answer (45)
<result>E</result>
The population of a bacteria culture doubles every 5 minutes. Approximately how many minutes will it take for the population to grow from 1,000 to 500,000 bacteria