The doubling time of a city's population is 17 years. How long does it take for the population to quadruple?

as long as it takes to double twice: 34 years

How did you get that?

To find out how long it takes for the population to quadruple, we need to understand the concept of "doubling time" and apply it to the given scenario.

The doubling time represents the amount of time it takes for a population to double in size. In this case, we are given that the doubling time of the city's population is 17 years. This means that every 17 years, the population of the city doubles.

To determine how long it takes for the population to quadruple, we can use the concept of doubling time. Since quadrupling means multiplying the population by 4, we can assume that it will take double the amount of time it takes to double the population.

Therefore, the time it takes for the population to quadruple can be calculated by multiplying the doubling time by 2.

In this case, the doubling time is 17 years. So, to find out how long it takes for the population to quadruple, we multiply 17 by 2.

17 years x 2 = 34 years.

Thus, it takes 34 years for the population of the city to quadruple.

come on, man. quadrupling means doubling twice. Each doubling takes 17 years.

after 17 years, the initial population P has grown to 2P

after 17 more years, the population 2P has grown to 2(2P) = 4P, and is quadruple the initial population of P.