Question

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Answer 1

Resposta:

A x=2

B x=7.5

C x=30

D x=6

Explicação passo-a-passo:

A

$\frac{6}{3} = \frac{4}{ \times } \\ 6 \times = 12 \\ \times = \frac{12}{6} \\ \times = 2$

B

$\frac{5}{ \times } = \frac{4}{6} \\ 4 \times = 30 \\ \times = \frac{30}{4} \\ \times = 7.5$

C

$\frac{10}{8} = \frac{ \times }{24} \\ 8 \times = 240 \\ \times = \frac{240}{8} \\ \times = 30$

D

$\frac{10 + \times }{10} = \frac{8}{5} \\ 50 + 5 \times = 80 \\ 5 \times = 80 - 50 \\ 5 \times = 30 \\ \times = \frac{30}{5} \\ \times = 6$