No inicio deste seculo, a população da Índia girava em torno de 1,029 bilhão de habitantes. supondo que ela cresça 20% em cada década, em 2021 essa
população será aproximadamente?
a) 1,440 bilhão
b) 1,482 bilhão
c) 1,5 bilhão
d) 1,235 bilhão
Respostas
respondido por:
20
Bom dia Flavia!
Solução!
Para resolver esse exercício,você pode fazer uma regra de três o multiplicar o percentual direto e somar com o número de habitantes..
![i\%=20\\\\\\
Habitantes=1,029\\\\\\\\\
\dfrac{20}{100}= \dfrac{x}{1029}\\\\\\\
100\times x=20\times1029\\\\\\
100x=20580\\\\\\
x= \dfrac{20580}{100}\\\\\\
\boxed{x=205,8 }](https://tex.z-dn.net/?f=i%5C%25%3D20%5C%5C%5C%5C%5C%5C%0AHabitantes%3D1%2C029%5C%5C%5C%5C%5C%5C%5C%5C%5C%0A+%5Cdfrac%7B20%7D%7B100%7D%3D+%5Cdfrac%7Bx%7D%7B1029%7D%5C%5C%5C%5C%5C%5C%5C%0A100%5Ctimes+x%3D20%5Ctimes1029%5C%5C%5C%5C%5C%5C%0A100x%3D20580%5C%5C%5C%5C%5C%5C%0Ax%3D+%5Cdfrac%7B20580%7D%7B100%7D%5C%5C%5C%5C%5C%5C%0A%5Cboxed%7Bx%3D205%2C8+%7D++ "i\%=20\\\\\\
Habitantes=1,029\\\\\\\\\
\dfrac{20}{100}= \dfrac{x}{1029}\\\\\\\
100\times x=20\times1029\\\\\\
100x=20580\\\\\\
x= \dfrac{20580}{100}\\\\\\
\boxed{x=205,8 }")
![Total ~~de~~ habitantes=1.029+205,8\\\\\\
Total ~~de~~ habitantes=1.029,00}\\
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\underline{205,8~~}\\\\\
Total ~~de~~ habitantes=1234,8\\\\\\
Arredondando!\\\\\\\
Total ~~de~~ habitantes=1,235\\\\\\\\\\
\boxed{Resposta: Alternativa~~D}](https://tex.z-dn.net/?f=Total+%7E%7Ede%7E%7E+habitantes%3D1.029%2B205%2C8%5C%5C%5C%5C%5C%5C%0ATotal+%7E%7Ede%7E%7E+habitantes%3D1.029%2C00%7D%5C%5C%0A%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%5Cunderline%7B205%2C8%7E%7E%7D%5C%5C%5C%5C%5C%0ATotal+%7E%7Ede%7E%7E+habitantes%3D1234%2C8%5C%5C%5C%5C%5C%5C%0AArredondando%21%5C%5C%5C%5C%5C%5C%5C%0ATotal+%7E%7Ede%7E%7E+habitantes%3D1%2C235%5C%5C%5C%5C%5C%5C%5C%5C%5C%5C%0A%5Cboxed%7BResposta%3A+Alternativa%7E%7ED%7D "Total ~~de~~ habitantes=1.029+205,8\\\\\\
Total ~~de~~ habitantes=1.029,00}\\
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\underline{205,8~~}\\\\\
Total ~~de~~ habitantes=1234,8\\\\\\
Arredondando!\\\\\\\
Total ~~de~~ habitantes=1,235\\\\\\\\\\
\boxed{Resposta: Alternativa~~D}")
Bom dia!
Bons estudo!
Solução!
Para resolver esse exercício,você pode fazer uma regra de três o multiplicar o percentual direto e somar com o número de habitantes..
Bom dia!
Bons estudo!
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