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A bacterial culture, growing exponentially, increases from 200 to 500 grams in the period from 6a.m to 9am. How many grams will be present at noon
3 years ago

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oobleck
it grew by a factor of 5/2 in 3 hours,
so, it will do the same in the next three hours, right?
500 * 5/2 = ____
3 years ago

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