Question

um investidor aplica 1.000,00 a juros simples de 3% ao mês. determine o valor recebido após um 8 meses.
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Answer 1

J = C.i.t

J = 1000.0,03.8

J = 0,24 . 1000

J = 240

M = C + J

M = 1000 + 240

M = 1240

Answer 2

Basta utilizarmos a equação do regime de juros simples:

$\rightarrow~Capital~=~R\ \,1.000,00\\\\\rightarrow~Taxa~=~3\%\,a.m~=~\dfrac{3}{100}\\\\\rightarrow~Periodo~=~8~meses\\\\\\\\\boxed{Juros~=~Capital~\times~Taxa~\times~Periodo}\\\\\\Juros~=~1000~\times~\dfrac{3}{100}~\times~8\\\\\\Juros~=~\dfrac{1000~.~3~.~8}{100}\\\\\\Juros~=~\dfrac{24000}{100}\\\\\\\boxed{Juros~=~R\ \,240,00}$