Question

Qual o valor do capital se, apos 7 anos a taxa de juros simples de 24% ao ano, obtivermos um montante de R$ 1140,00?

Answer 1

$M=C*(1+i) ^{t} \\\\ C=?\\ M=1140,00\\i=24\to 0,24\\t=7 anos \\\\1140=C*(1+0,24)^{7} \to \\\\ 1140=C*(1,24) ^{7} \to \\\\1140=C*4,5\to \\\\ \frac{1140}{4,5} =C\to \\\\ C=253,33$