Question

Qual o valor da expressão numérica 0,333... + raiz quadrada de 9- (1,5 + 2/3)?
A)7/6
B)5/3
C)32/27
D)25/6
E)13/15

Answer 1

$0.333... + \sqrt{9} - (1.5 + \frac{2}{3} )$

$\frac{1}{3} + 3 - ( \frac{1.5 \times 3 + 2}{3} )$

$\frac{1}{3} + 3 - \frac{6.5}{3}$

$\frac{1 + 3 \times 3}{3} - \frac{6.5}{3}$

$\frac{3.5}{3} = \frac{7}{6}$

R: letra a)