Question

17. Calcule o valor de x nas proporções
a)x = 6
5. 10
b)2x = 8
3. 6​

Answer 1

$a) \frac{x}{5} = \frac{6}{10} \\ x \times 10 = 5 \times 6 \\ 10x = 30 \\ x = \frac{30}{10} \\ x = 3$

$b) \frac{2x}{3} = \frac{8}{6} \\ 2x \times 6 = 3 \times 8 \\ 12x = 24 \\ x = \frac{24}{12} \\ x = 2$