Question

me pueden ayudaaaaaarrrr porfa.

fe24b5881871e53233c4dfd0a21cdcab.docx

Answer 1

Explicación paso a paso:

a.

$\frac{10}{5} = \frac{x}{3}$

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

b.

$\frac{12}{4} = \frac{3.9}{x}$

$x = \frac{3.9 \times 4}{12} = \frac{15.6}{12} = 1.3$