Question

Calcule o juro eo montante de uma aplicaçao deR$ 20.000 DURAMTE OITO MESES A TAXA DE JURO SIMPLES DE 0,8A.M

Answer 1

FV=PV(1+i*n)
FV=20000 (1+0,008*8)
FV=20000(1,064)
FV=21280,00

J=FV-PV
J=21280-20000=1280,00

Answer 2

j=C*i/100*t

j=20000*0,8/100*8
j=16000/100*8
j=160*8
j=1280
Resposta: Juros de R$1.280,00

M=C+j
M=20000+1280
M=21280
Resposta: Montante de R$21.280,00