Respostas
1
J = C*i*t/100 J = juros C = capital i = taxa t = tempo
J = 7500* 2,5*8/100
J = 1500
M = C + J M = montante
M = 7500 + 1500
M = R$ 9000,00
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2
M = C + J
3300 = 2500 + J
J = 3300 - 2500
J = 800
J = C*i*t/100
800 = 2500*i*8/100
800*100 = 20000*i
80000 = 20000*i
i =80000/20000
i = 4%
resposta = 4%
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3 -
J = C*i*t/100
J = 15000.1,5.11/100
J = 2475
M = C + J
M = 15000 + 2475
M = R$17.475,00
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4 -
J = C*i*t/100
J = 1800*3*9/100 3 trimestres = 3*3 = 9 meses
J = 486
M = 1800 + 486
M = R$2286,00
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5 -
M = C ( 1 + i) ⁿ
M = 750(1 + 0,025)⁷
M = 750(1,025)⁷
M = 750*1,19
M = R$ 892,50
ufa!!! rsrsrs
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