Question

resuelve las siguientes ecuaciones
(1) 4/x=12/15
(2) x/10=18/60
(3) 12/11=x/55
(4) 28/7=4/x​

Answer 1

Respuesta:

$\frac{4}{x} = \frac{12}{15}$

$60 = 12x$

$5 = x$

2)

$\frac{x}{10} = \frac{18}{60}$

$60x = 180$

$x = 3$

3)

$\frac{12}{11} = \frac{x}{55}$

$\frac{55 \times 12}{11} = x$

$60 = x$

$\frac{28}{7} = \frac{4}{x}$

$4x = 4$

$x = 1$