Question

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1 ) Nas figuras, a/b/c, calcule o valor de x.

Answer 1

Resposta:

Explicação passo-a-passo:

a)

$\frac{2}{4}=\frac{3}{x}$

2x = 4.3

2x = 12

x = $\frac{12}{2}$

x = 6

b)

$\frac{4}{12}=\frac{x}{21}$

12x = 4.21

12x = 84

x = $\frac{84}{12}$

x = 7

c)

$\frac{x}{14}=\frac{9}{12}$

12x = 14.9

12x = 126

x = $\frac{126}{12}$

x = 10,5

d)

$\frac{x}{9}=\frac{8}{12}$

12x = 9.8

12x = 72

x = $\frac{72}{12}$

x = 6