Question

the population of a city decreases by 5% per year. what should we multiply the current population by to find next years population in one step?

Explanation:

Step1: Understand the percentage decrease

A 5% decrease means the remaining population is \(100\% - 5\% = 95\%\) of the current population.

Step2: Convert the percentage to a decimal

To use this in a multiplication, we convert 95% to a decimal. Since \(95\%=\frac{95}{100} = 0.95\). So we multiply the current population by 0.95 to get next year's population.

Answer:

0.95