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Popular Word Problems >

The population of a city is 150,000 and the annual growth rate is 6.9%. Write an equation to model the population y after x years.

Solution

T h e p o p u l a t i o n o f a c i t y i s 150, 000 an d t h e ann u a l g ro wt h r a t e i s 6.9%. W r i t e an e q u a t i o n t o m o d e l t h e p o p u l a t i o n y a f t er x ye a rs .

Solution

Amount before addition : 140318.05425 \dots

Solution steps

Translate the problem into an equation:

150000 = x + 0.069 x

150000 = x + 0.069 x : x = \frac{150000000}{1069}

\frac{150000000}{1069} = 140318.05425 \dots

Amount before addition : 140318.05425 \dots

Popular Examples

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