Exponential Growth and Decay problems

[kimmy_koo51]

1. If a bacteria population double in 5 d when will it be 16 times as large?


Doesn't there seem like some information is missing?

 

[stapel]

Doesn't there seem like some information is missing?

No. Simply apply the definition of "exponential growth", using the given growth-rate information and the fact that 16 = 2⁴.

Eliz.

 

[kimmy_koo51]

So, using the formula n(t) = c x 2^t/d ?

 

[stapel]

What does it mean for growth to be exponential? (Hint: A fixed doubling time.)

If the doubling time is two days, then what is the quadrupling time? (Hint: Double double.)

How many days, then, to be sixteen times as large?

Eliz.