Question

Um capital de R$80,00 Aplicado A juros simples a taxa de 2,4 %a.m.atinge, em 45 dias,um montante, em reais,de:

Answer 1

j=c.i.t
j=80.2,4.1,5
j=192.1,5
j=288

m=j+c
m=288+80
m=368

Answer 2

M=C*i/100*t+C

M=80*2,4/100/30*45+80
M=192/100/30*45+80
M=1,92/30*45+80
M=0,064*45+80
M=2,88+80
M=82,88
Resposta: Montante de R$82,88