The population of a city was 2 million in 2017

Berikut ini adalah pertanyaan dari martabakenak2010 pada mata pelajaran Matematika untuk jenjang Sekolah Menengah Atas

The population of a city was 2 million in 2017 and 2.1 million in 2018. Assuming the growth rate of the population remains the same per year, estimate the population in a) 2019​

Jawaban dan Penjelasan

Berikut ini adalah pilihan jawaban terbaik dari pertanyaan diatas.

Jawab:

Penjelasan dengan langkah-langkah:

If the growth rate of the population remains the same per year, we can use the formula:

P = P0 * (1 + r)^n

where P is the population after n years, P0 is the initial population, r is the growth rate, and n is the number of years.

We can find the growth rate by dividing the increase in population between 2017 and 2018 by the initial population in 2017:

r = (2.1 million - 2 million) / 2 million = 0.05

So, the formula becomes:

P = 2 million * (1 + 0.05)^n

For 2019:

n = 2 (2018 is the second year)

P = 2 million * (1 + 0.05)^2 = 2 million * 1.1025 = 2.205 million

Therefore, the estimated population in 2019 is 2.205 million

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Last Update: Thu, 11 May 23