Question

calcula el valor desconocidos​

Answer 1

Respuesta:

a) X = 4

b) X = 27/2

c) X = 4

Explicación paso a paso:

a)

$\frac{1}{2} = \frac{x}{8} \\ 8 = 2x \\ \frac{8}{2} = x \\ 4 = x$

b)

$\frac{2}{3} = \frac{9}{x} \\ 2x = 9(3) \\ 2x = 27 \\ x = \frac{27}{2}$

c)

$\frac{12}{x} = \frac{9}{3} \\ \frac{12}{x} = 3 \\ 12 = 3x \\ \frac{12}{3} = x \\ 4 = x$