a culture started with 3,000 bacteria. after 8 hours it grew to 3,300 bacteria. predict how many bacteria will present after 12 hours. round your answer to the nearest whole number.
3,300 - 3,000 = 300 In eight hours, 300 bacteria grew. 300 / 8 = 37.5 In every hour, 37.5 bacteria grew. 37.5 x 12 = 450 In twelve hours, 450 bacteria will grow. 3,000 + 450 = 3,450 In total, there will be 3,450 bacteria in twelve hours :)
