There are initially 1000 bacteria in a culture. The number of bacteria doubles each hour. The number of bacteria N present after t hours is N=1000(2)^t . How long will it take the culture to increase to 50,000 bacteria? There are initially 1000 bacteria in a culture. The number of bacteria doubles each hour. The number of bacteria N present after t hours is . How long will it take the culture to increase to 50,000 bacteria? about 5 hours about 625 hours about 25 hours about 5.6 hours