Question

if the population of an ant hill doubles every 10 days and there are currently 40 ants living in the ant hill, what will the ant hill population be in 20 days

Answer 1

Doubling time

$A=P(2)^\frac{n}{d}$
A=final amount
P=initial amount
n=number of days
d=number of days to double



so
given initial is 40 ants
doubling time is 10 days
and days we want is 20 then

$A=40(2)^\frac{20}{10}$
$A=40(2)^2$
$A=40(4)$
A=160

the population is 160