Question

calcule os juros odtido de uma aplicação de R$500,00 a taxa de 20% ao mês durante 4 meses
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Answer 1

Resposta:

$\textsf{Leia abaixo}$

Explicação passo a passo:

$\mathsf{J = C \times i \times t}\rightarrow\begin{cases}\mathsf{J = juros}\\\mathsf{C = capital}\\\mathsf{i = taxa}\\\mathsf{t = tempo}\end$

$\mathsf{J = 500 \times \dfrac{20}{100} \times 4}$

$\mathsf{J = 500 \times 0,20 \times 4}$

$\boxed{\boxed{\mathsf{J = R\ \:400,00}}}\leftarrow\textsf{juros simples}$

$\mathsf{M = C \times (1 + i)^t}\rightarrow\begin{cases}\mathsf{M = montante}\\\mathsf{C = capital}\\\mathsf{i = taxa}\\\mathsf{t = tempo}\end$

$\mathsf{J = M - C}$

$\mathsf{J = 500 \times (1 + 0,20)^4 - 500}$

$\mathsf{J = 500 \times (1,20)^4 - 500}$

$\mathsf{J = 500 \times 2,0736 - 500}$

$\mathsf{J = 1.036,80 - 500}$

$\boxed{\boxed{\mathsf{J = R\ \:536,80}}}\leftarrow\textsf{juros compostos}$