Question

por favor alguém me ajuda com essas contas aqui​

Answer 1

$> resolucao \\ \\ \geqslant teorema \: \: de \: \: tales \\ \\ \frac{4x + 1}{x + 2} = \frac{16}{18} \\ \\ 72x + 18 = 16x + 32 \\ 72x - 16x = 32 - 18 \\ 56x = 14 \\ x = \frac{14}{56} \\ x = \frac{1}{4} \\ \\ = = = = = = = = = = = = = = = = = = = = = = = \\ \\ \\ \frac{3}{5} = \frac{4x - 2}{3x + 1} \\ \\ 20x - 10 = 9x + 3 \\ 20x - 9x = 3 + 10 \\ 11x = 13 \\ x = \frac{13}{11} \\ \\ \\ = = = = = = = = = = = = = = = = = = = = = = \\ \\ \\ \frac{4x - 1}{3x} = \frac{6.3}{5.25} \\ \\ 21x - 5.25 = 18.9x \\ 21x - 18.9x = 5.25 \\ 2.1x = 5.25 \\ x = \frac{5.25}{2.1} \\ x = 2.5 \\ \\ \\ \\ \geqslant \leqslant \geqslant \leqslant \geqslant \leqslant \geqslant \leqslant \geqslant \leqslant \geqslant$