Question

socorro!!!
calcule o valor de X para que as frações sejam equivalentes

a)
X 3
--- = ---
6 18

b)
10 20
--- = ----
X 8

c)
12 X
--- = ---
15 5

d)
25 5
--- = ---
35 X​

Answer 1

Resposta:

$a) \frac{x}{6} = \frac{3}{8} \\ x = \frac{18}{8} = \frac{9}{4}$

$b)\frac{10}{x} = \frac{20}{8} \\ x = \frac{80}{20} = 4$

$c) \frac{12}{15} = \frac{x}{5} \\ x = \frac{5 \times 12}{15} \\ x = 4$

$d) \frac{25}{35} = \frac{5}{x} \\ x = \frac{35 \times 5}{25} \\ x = 7$