Question

Um capital de R$80,0 aplicado a juro simples á taxa de 2,4% a.m.atinge,em 45 dias,um montante de:

Answer 1

M=C*i/1--*t+C

M=80*2,4/100/30*45+C
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

Answer 2

Boa tarde!

Dados;

C → 80

i → 2,4%a.m → 2,4/100 = 0,024%a.m

t → 45 dias | dias em mês → 45/30 = 1,5 meses

J → ?

M → ?

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J=c·i·t

J=80·0,024·1,5

J=1,92·1,5

J=R$2,88

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M=C+J

M=80+2,88

M=R$82,88

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Att;Guilherme Lima