Question

descubra o valor de x
me ajudem por favor ​

Answer 1

Resposta

$\frac{x}{10} =\frac{3}{15} \\15x=10*3\\15x=30\\x=\frac{30}{15} \\x=2$

$\frac{x}{20} =\frac{4}{5} \\5x=20*4\\5x=80\\x=\frac{80}{5} \\x=16$$\\\\\f\\rac{x}{2} =\frac{9}{6} \\6x=2*9\\6x=18\\x=\frac{18}{6}\\ x=3$