Question

Considere que x,y e 120 são diretamente proporcionais aos números 75,100 e 150 respectivamente,determine x e y

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Answer 1

$\geqslant \: resolucao \\ \\ \\ x \: \: y \: \: 120 \\ 75 \: \: 100 \: \: 150 \\ \\ = = = = = = = = = = = = = = = = \\ \\ \frac{y}{100} = \frac{120}{150} \\ 150y = 100 \times 120 \\ 150y = 12000 \\ y = \frac{12000}{150} \\ y = 80 \\ \\ = = = = = = = = = = = = = = = = = \\ \\ \frac{x}{75} = \frac{80}{100} \\ \\ 100x = 75 \times 80 \\ 100x = 6000 \\ x = \frac{6000}{100} \\ x = 60 \\ \\ \\ \geqslant \leqslant \geqslant \leqslant \geqslant \leqslant \geqslant \leqslant \geqslant \geqslant$