Question

If there are 10,000 bacteria at 6:00 am, and they triple every 15 minutes, how much time will it take for there to be 100,000? How many bacteria will there be at 11:00 am? Must use logarithms.
oobleck
After x 15-minute periods, you have
P(x) = 10000 * 3^x
So now you can answer the questions.