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SAT® Math

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Moderate

Population Growth

SATMAT-MWKDEK

The population of a certain country grows by $ {1.15\%} $ per year. If its current population is $15$ million, which function models the population $ P $, measured in millions, as a function of the number of years, $ t $, into the future?

A

$ P(t)=15{ (1.15) }^{ t } $

B

$ P(t)=15{ (0.0115) }^{ t } $

C

$ P(t)=15.1725^{ t } $

D

$ P(t)=15{ (1.0115) }^{ t } $