Question

Efetue os calculos abaixos?
A) 30%30%
B) raiz quadrada de 16%
C) 20%10%
________
5%

Answer 1

A)$30\% * 30\% = 0,3 * 0,3 = 0,09 = \boxed{9\%}$
B)$\sqrt{16\%} = \boxed{4\%}$
C)$\frac{20\% * 10\%}{5\%} = \frac{0,2 * 0,1}{0,05} \\ \\ \frac{0,2 * 0,1}{0,05} = \frac{\frac{2}{10} * \frac{1}{10}}{\frac{5}{100}} = \frac{\frac{2}{100}}{\frac{5}{100}} = \frac{2}{100} * \frac{100}{5} = \frac{200}{500} = \frac{2}{5} = 0,4 = \boxed{40\%}$

Answer 2

Bom dia

30/100 * 30/100 = 900/(100*100) = 9/100 = 0.09

√16% = √16/100 = 4/10 = 0.4

20/100 * 10/100 /(5/100) = (20/100)*(2/100) = 40/10000 = 40%