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Licemer1 [7]
3 years ago
5

In a lab experiment, 40 bacteria are placed in a petri dish. The conditions are such that the number of bacteria is able to doub

le every 17 hours. How many bacteria would there be after 4 hours, to the nearest whole number?
Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
3 0

Answer:

59 bacteria would there be after 4 hours.

Step-by-step explanation:

Given:

Bacteria in the petri dish = 40

Time taken for the bacteria to be doubled  =17 hours

To Find:

To Find the number bacteria left after 4 hours = ?

Solution:

By using the proportionality,

After 17 hours the number of bacteria will be 80.

Let the number of bacteria after 4 hours be x

then

\frac{80}{17} = \frac{x}{4}

Now by cross multiplication

17 \times x = 80 \times 4

17 x = 320

x=\frac{320}{17}

x= 18. 82

So the number of bacteria after 4 hours will be

= 40 + 18.82

= 58.82

=59

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