Posted by **renee** on Thursday, February 5, 2009 at 7:11pm.

neil was growin a culture of a bacteria for biology experiement. he noticed that the population doubled after 90 minutes. if the population grows exponentially, how many times the original population will there be after 6 hours?

- algebra -
**cher**, Thursday, February 5, 2009 at 7:35pm
62 6tens 2ones Regroup ___ tens ___ ones

- algebra -
**annmay**, Thursday, February 5, 2009 at 7:43pm
8 times. 90*4=360 minutes=6hrs

- algebra -
**renee**, Thursday, February 5, 2009 at 7:47pm
wouldnt it be 4 times though?

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