Question

Me ajudem pfvv
1) Calcule o juros:
a) C = 2780
I = 2%
T = 7 meses
J = ?
b) C = 4680
I = 4%
T = 9 meses
J = ?
c) C = 3680
I = 3%
T = 8 meses
J = ?
d) C = 9880
I = 5%
T = 6 meses
J = ?
e) C = 7780
I = 6%
T = 4 meses
J = ?
f) C = 8580
I = 7%
T = 3 meses
J = ?

Answer 1

Regra de 3 cara, vou fazer a primeira ai tu segue.

2780--100%

X. --2%

5560=100

x=55,6

55,6x7= 389,2

Answer 2

Resposta:

Vamos lá!

a) C = 6780  I = 2%  T = 7 meses

$j=(cit)\\\\j=2780.(0,02).7\\\\j=389,20_{reais}$

b) C = 5880  I = 4%  T = 5 meses

$j=(cit)\\\\j=4680.(0,04).9\\\\j=1684,80_{reais}$

c) C = 3680  I = 3%  T = 8 meses

$j=cit)\\\\j=3680.(0,03).8\\\\j=883,20_{reais}$

d) C = 9280  I = 5%  T = 6 meses

$j=(cit)\\\\j=9880.(0,05).6\\\\j=2964,00_{reais}$

e) C = 7780  I = 6%  T = 4 meses

$j=(cit)\\\\j=7780.(0,06).4\\\\j=1867,20_{reais}$

f) C = 8580  I = 7%  T = 3 meses

$j=cit\\\\j=8550.0,07.3\\\\j=1.795,50_{reais}$

Bons estudos!!!

Pro Alexandre