Resposta :
[tex] \geqslant resolucao \\ \\ \\ \geqslant juros \: simples \\ \\ c = 3000 \\ t = 9 \: meses \\ i = \frac{15}{12} = 1.25\%a.m \\ \\ \\ j = \frac{c \times i \times t}{100} \\ \\ j = \frac{3000 \times 1.25 \times 9}{100} \\ \\ j = 30 \times 1.25 \times 9 \\ \\ j = 377.50 \\ \\ \\ = = = = = = = = = = = = = \\ \\ \\ c = 50000 \\ i = 2\%a.m \\ t = 5 \: anos \: \\ 5 \times 12 = 60 \: meses \\ \\ \\ j = \frac{c\times i \times t}{100} \\ \\ j = \frac{50000 \times 2 \times 60}{100} \\ \\ j = 500 \times 2 \times 60 \\ \\ j = 60000 \\ \\ \\ m = c + j \\ \\ m = 50000 + 60000 \\ \\ m = 110.000 \\ \\ \\ = = = = = = = [/tex]
