Question

Asked Mar 4, 2020

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A biologist swabs a sample of bacteria onto a petri dish, and this original colony covers an area of 2 mm^{2}. Every hour, the colony's area increases by 4.5%.

When will the colony's area be double the original area?

Step 1

Given that the original colony has an area of 2 mm2.

Increasing rate = 4.5%= 0.045 per hour

If the area becomes double then...

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