Question

a lab is growing bacteria in a culture dish. The amount of bacteria in the dish triple every 5 hours. Initially there are 250 bacteria in the dish. How many are in the dish after 15 hours?

Answer 1

@AihberKhan

Answer 2

We can write an expression.

\(\sf 250(x^3)\)

Where 'x' is the amount of bacteria after 5 hours.

Answer 3

15 / 5 = ?

Answer 4

3

Answer 5

Yes, so plug in 3 for 'x' in the expression and simplify to see how much bacteria is in the dish after 15 hours.

Can you do that?

Answer 6

So it would be \[250(3^3)\]

Answer 7

Correct. Now simplify.

Answer 8

6750?

Answer 9

Yep, that's our answer.

Answer 10

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