Question

valor de m na igualdade 9/2x = 12/4 é:
a) 1/2.
b) 2/3.
c) 3/4.
d) 4/5

Answer 1

Resposta:

Alternativa Letra B 2/3

x = 12/4 × 2/9

x =24/36 = 4/6 = 2/3

Answer 2

$\frac{9}{2x} = \frac{12}{4} \\ 2x \times 12 = 9 \times 4 \\ 24x = 36 \\ x = \frac{36( \div 12)}{24( \div 12)} \\ x = \frac{3}{2}$