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A city has a population of 360.000 people. Suppose that each year the population grows by 7,25%. What will the population be after 14 years?

Question

A city has a population of 360.000 people. Suppose that each year the population grows by 7,25%. What will the population be after 14 years?

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Solution

Para resolver este problema, utilizaremos la fórmula del crecimiento exponencial:

P(t)=P0×(1+r)t P(t) = P_0 \times (1 + r)^t

donde:

  • P(t) P(t) es la población después de t t años.
  • P0 P_0 es la población inicial.
  • r r es la tasa de crecimiento anual.
  • t t es el número de años.

En este caso:

  • P0=360,000 P_0 = 360,000
  • r=7.25%=0.0725 r = 7.25\% = 0.0725
  • t=14 t = 14

Sustituyendo estos valores en la fórmula:

P(14)=360,000×(1+0.0725)14 P(14) = 360,000 \times (1 + 0.0725)^{14}

Primero, calculamos 1+0.0725 1 + 0.0725 :

1+0.0725=1.0725 1 + 0.0725 = 1.0725

Luego, elevamos este resultado a la potencia de 14:

1.0725142.636 1.0725^{14} \approx 2.636

Finalmente, multiplicamos este resultado por la población inicial:

P(14)=360,000×2.636949,000 P(14) = 360,000 \times 2.636 \approx 949,000

Por lo tanto, la población después de 14 años será aproximadamente 949,000 personas.

This problem has been solved

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