Question

a que taxa de juro simples o capital de R$8000,00 rende R$2400,00 em 6 meses?​

Answer 1

Resposta:

i = 5%

Explicação passo-a-passo:

$M = 8000+2400=\text{R\ }\ 10400\text{,00}\\ C=\text{R\ }\ 8000\text{,00}\\ t=6\ \text{meses}\\\\ M=C(1+it)\ \therefore\ i=\dfrac{1}{t}\bigg(\dfrac{M}{C}-1\bigg)\\\\ i=\dfrac{1}{6}\bigg(\dfrac{10400}{8000}-1\bigg)=\dfrac{1}{6}\bigg(1,3-1\bigg)=\dfrac{0,3}{6}=0,05\ \therefore\\\\ \therefore\ i=0,05\ \therefore\ i=5\%$

Taxa de juro simples = i = 5% ao mês.

Answer 2

Resposta:

i = 5% a.m.

Explicação passo-a-passo:

A que taxa de juro simples o capital de R$8000,00 rende R$2400,00 em 6 meses?​

J = c.i.n

2400 = 8000 . I . 6 (:6)

400 = 8000 . I (:100)

4 = 80.i (:4)

1 = 20 . I

1/20 = i

i= 1/20 . 5/5

I = 5/100

i = 5% a.m.