Question

Население города N составляет 800000 человек. Каким будет прирост населения города за 3 года, если известно, что ежегодный прирост населения равен 7% ?

Answer 1

Ответ:
968000
Объяснение:
800000×7:100=56000 это в год, 56000×3=168000
800000+168000=968000

Answer 2

Calculating Population Growth

To calculate the population growth over 3 years with an annual growth rate of 7%, we can use the formula for compound interest. The formula for calculating the future value with compound interest is:

Future Value = Present Value * (1 + r)^n

Where: - Present Value = 800,000 (initial population) - r = 7% or 0.07 (annual growth rate) - n = 3 (number of years)

Now, let's calculate the future population using this formula.

Future Value = 800,000 * (1 + 0.07)^3

Calculation

800,000 * (1 + 0.07)^3 = 800,000 * (1.07)^3

Result

800,000 * (1.07)^3 ≈ 800,000 * 1.225043 ≈ 980,034

So, the population of the city after 3 years with an annual growth rate of 7% would be approximately 980,034 people.

This calculation is based on the formula for compound interest and the given annual growth rate of 7% per year