Question

the population of a city has increased by 29% since it was last measured. if the current population is 12,900, what was the previous population?

Explanation:

Step1: Define previous population

Let $x$ = previous population.

Step2: Set up growth equation

Current population = previous population × (1 + growth rate)
$$12900 = x \times (1 + 0.29)$$

Step3: Simplify and solve for $x$

$$x = \frac{12900}{1.29}$$
$$x = 10000$$

Answer:

10000