Question

alguém puxavo.
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pufavo​

Answer 1

i = 2,5% a.m = 2,5 / 100
J = 126000
T = 3 anos = 36 meses
J = c.i.n
126000 = c.2,5 / 100 . 36
126000 = 36/100 (:4)/(:4) . 2,5 . c
126000 = 9/25 . 2,5 . c
126000 = 2,5 / 25 . 10/10 . 9c
126000 = 25/250 (:25)/(:25). 9c
126000 = 1/10 .9c
126000.10 = 9c
126.10^4 / 9 (:3)/(:3) = c
42/3 . 10^4 = c
14.10000 = c
140000 = c
c = 140000

R.: Capital de R$ 140000,00