Question

70 pontos para amanhã

Answer 1

Vamos lá!

Primeiro, saibamos a fórmula do juros simples: J = c.i.t

Onde,

J = Juros aplicado

c = capital inicial

i = taxa

t = tempo

1.

2,10 = 837,17.i.30

i = 7,5%

2.

226,45 = 1067,74.0,01.t

226,45 = 10,68.t

t = 21 meses

3.

800,75 = 1500.i.6

i = 8,9% acumulados

800,75 = 1500.i.1

i = 53,4% mensais

4.

J = 80975,59.0,0145.3

J = 3522,43816 = 3.522,44

5.

84248 = c.0,0177.3

84248 = c.0,0531

c = 1.586.591,34

6.

J = 6000.0,035.5

J = 1.050

7.

2756 = 12250,25.i.9

2756 = 110252,25.i

i = 2,5%

8.

1140,25 = 13000.i.6

i = 1,46% x 2 = 2,92%

9.

7800 = 9750.0,05.t

7800 = 487,5.t

t = 16 trimestres = 4 anos

10.

950 = c.0,028.12

c = 2.827,38

11.

5862,88 = 21749,41.i.5

i = 5,39% : 5 = 1,08%

12.

J = 21150.0,0364.1

J = 769,86

Valor futuro = 21.150 + 769,86 = 21.919,86

13.

J = 7565,01.0,025.12

J = 2.269,5

Valor futuro = 7.565,01 + 2.269,5 = 9.834,5

14.

56737,59 = c.(0,028.3)+1

c = 52.340,95

OBS: Todos os valores estão aproximados!

Answer 2

Resposta:

Primeiro, saibamos a fórmula do juros simples: J = c.i.t

Onde,

J = Juros aplicado

c = capital inicial

i = taxa

t = tempo

1.

2,10 = 837,17.i.30

i = 7,5%

2.

226,45 = 1067,74.0,01.t

226,45 = 10,68.t

t = 21 meses

3.

800,75 = 1500.i.6

i = 8,9% acumulados

800,75 = 1500.i.1

i = 53,4% mensais

4.

J = 80975,59.0,0145.3

J = 3522,43816 = 3.522,44

5.

84248 = c.0,0177.3

84248 = c.0,0531

c = 1.586.591,34

6.

J = 6000.0,035.5

J = 1.050

7.

2756 = 12250,25.i.9

2756 = 110252,25.i

i = 2,5%

8.

1140,25 = 13000.i.6

i = 1,46% x 2 = 2,92%

9.

7800 = 9750.0,05.t

7800 = 487,5.t

t = 16 trimestres = 4 anos

10.

950 = c.0,028.12

c = 2.827,38

11.

5862,88 = 21749,41.i.5

i = 5,39% : 5 = 1,08%

12.

J = 21150.0,0364.1

J = 769,86

Valor futuro = 21.150 + 769,86 = 21.919,86

13.

J = 7565,01.0,025.12

J = 2.269,5

Valor futuro = 7.565,01 + 2.269,5 = 9.834,5

14.

56737,59 = c.(0,028.3)+1

c = 52.340,95

Explicação passo a passo: