The population of a bacteria culture doubles every 4 minutes. Approximately how many minutes will it take for the population to grow from 1,000 to 500,000 bacteria Options:  A) 10  B) 12  C) 14  D) 36  E) 18
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 4 minutes   So answer is 9*4= 
<gadget id="calculator">9*4</gadget>
<output>36</output>
36 minutes   Answer (36)
<result>D</result>
The population of a bacteria culture doubles every 4 minutes. Approximately how many minutes will it take for the population to grow from 1,000 to 500,000 bacteria