Question

I need a formula for population at t yrs when the population starts at 22mill and doubles in size every 7 yrs.

Answer 1

\[22\times 2^{\frac{t}{7}}\] should work

Answer 2

so t would be the percent it grows by each yr?

Answer 3

no t is time in years

Answer 4

fromula is
\[P(t)=22\times 2^{\frac{t}{7}}\] that will give the population after "t" years
so for example if t = 7,it should double as it is supposed to because
\[P(7)=22\times 2^{\frac{7}{7}}=22\times 2=44\] as needed

Answer 5

ok....I kept throwing the 22 and 2 around and just couldnt get them in the right places.

Answer 6

thank you!