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9 February, 08:53

The rate of change in the number of bacteria in a culture is proportional to the number present. In a certain laboratory experiment, a culture had 10,000 bacteria initially, 20,000 a time t1 minutes and 100,000 bacteria at (t1+10) minutes.

A) In terms of t only, find the number of bacteria in the culture a any time t minutes, t≥0.

B) How many bacteria were there after 20 minutes.

C) How many minutes had elasped when the 20,000 bacteria were observed

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  1. 9 February, 09:03
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    A 0.8t equal 10000 bacteria B. 160,000 bacteria C. 2.5 minutes

    Step-by-step explanation:

    (20000-10000) / t equal to (100,000-10000) / (t+10)
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