Regra de 3:
[tex]1500 = 100\% \\ x = 4\%[/tex]
[tex]100x = 1500.4 \\ 100x = 6000 \\ x = \frac{6000}{100} \\ x = 60[/tex]
[tex]3x = 3.x = 3.60 = 180[/tex]
Resposta: Márcia pagará R$180,00 a Lucía.
Espero ter ajudado.
[tex] > resolucao \\ \\ \geqslant juros \: simples \\ \\ c = 1.500.00 \\ i = 4\%a.m \\ t = 3 \: meses \\ \\ \\ m = c(1 + i \times t) \\ m = 1500(1 + 0.04 \times 3) \\ m = 1500(1 + 0.12) \\ m = 1500 \times 1.12 \\ m = 1680 \\ \\ \\ resposta \: > \: \: 1.680.00 \\ \\ \leqslant \geqslant \leqslant \geqslant \leqslant \geqslant \leqslant \geqslant \leqslant \geqslant \leqslant \geqslant [/tex]
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Regra de 3:
[tex]1500 = 100\% \\ x = 4\%[/tex]
[tex]100x = 1500.4 \\ 100x = 6000 \\ x = \frac{6000}{100} \\ x = 60[/tex]
[tex]3x = 3.x = 3.60 = 180[/tex]
Resposta: Márcia pagará R$180,00 a Lucía.
Espero ter ajudado.
[tex] > resolucao \\ \\ \geqslant juros \: simples \\ \\ c = 1.500.00 \\ i = 4\%a.m \\ t = 3 \: meses \\ \\ \\ m = c(1 + i \times t) \\ m = 1500(1 + 0.04 \times 3) \\ m = 1500(1 + 0.12) \\ m = 1500 \times 1.12 \\ m = 1680 \\ \\ \\ resposta \: > \: \: 1.680.00 \\ \\ \leqslant \geqslant \leqslant \geqslant \leqslant \geqslant \leqslant \geqslant \leqslant \geqslant \leqslant \geqslant [/tex]