Question

me ajude, resposta da 10,11,12 por favor​

Answer 1

Resposta:

10)

$a) \: \frac{1}{2} = \frac{1 \times 100}{2} = \frac{100}{2} = 50\% \\ \\ b) \frac{1}{5} = \frac{1 \times 100}{5} = \frac{100}{5} = 20\% \\ \\ c) \frac{5}{8} = \frac{5 \times 100}{8} = \frac{500}{8} = 62.5\%$

11)

$a) \: 15\% = \frac{15}{100} = \frac{3}{20} \\ \\ b) \: 12\% = \frac{12}{100} = \frac{3}{25} \\ \\ c) \: 40\% = \frac{40}{100} = \frac{2}{5}$

12)

$a) \: \frac{25 \times 200}{100} = \frac{5000}{100} = 50 \\ \\ b) \: \frac{70 \times 15000}{100} = \frac{1050000}{100} = 10500$

$c) \: \frac{20 \times 30 \times 10000}{100 \times 100} = \frac{6000000}{10000} = 600 \\ \\ d) \: \frac{7.5 \times 2000}{100} = \frac{15000| }{100} = 150$

$e) \: \frac{0.5 \times 3}{100} = \frac{1.5}{100} = 0.015$

Explicação passo-a-passo:

Espero ter ajudado.