SOLUTION: a research biologist began to grow a culture in which the number of bacteria doubled every day. three days later, she began a second culture in a richer medium so that the number o
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Question 253735: a research biologist began to grow a culture in which the number of bacteria doubled every day. three days later, she began a second culture in a richer medium so that the number of bacteria increased fourfold everyday. If each culture was begun with the same number of bacteria present, how many days after starting the second culture with the number of bacteria in the two cultures be equal? Answer by richwmiller(17219) (Show Source):
You can put this solution on YOUR website! first day
c
second day
c+c=2c
third day
2c+2c=4c C
fourth day
4c+4c=8c 4C
fifth day
8c+8c=16c 16C
same end of fifth day of cultures or third day of second culture
