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人気のある Word Problems >

The initial population of a small town was 2.53 thousand. The population grows at a rate of 2.15% each year. After how many years will the population have doubled?

解

T h e ini t ia l p o p u l a t i o n o f a s ma ll t o w n w a s 2.53 t h o u s an d . T h e p o p u l a t i o n g ro w s a t a r a t e o f 2.15% e a c h ye a r . A f t er h o w man y ye a rs w i ll t h e p o p u l a t i o n ha v e d o u b l e d ?

解

Amount after addition : 2.584395

解答ステップ

Translate the problem into an equation:

x = 2.53 + 0.0215 \cdot 2.53

x = 2.53 + 0.0215 \cdot 2.53 : x = 2.584395

Amount after addition : 2.584395

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