Question

qual o capital que, aplicado a juros composto a taxa de 3% a.d produz em 5 dias um montante de R$ 231,85?

Answer 1

M=C(1+i$) ^{t}$

231,85=C(1+0,03$) ^{5}$
231,85 = C(1,1593)
C= 231,85/1,1593
C=200

Answer 2

Olá, L1u2i3s.

Formula:
$M=c(1+i)^{n}$

Sendo:

$M=231,85$
$c = ?$
$i = 0,03$
$n = 5$

Substituindo:

$231,85=c(1+0,03)^{5}$
$231,85=c(1,03)^{5}$
$231,85=c(1,1592741)$
$231,85=1,1592741c$

$\frac{231,85}{1,1592741}=c$
$199,9958422=c$

$Arredondando: c = 200$