Question

ME AJUDA
O valor numérico de x é

a) 7/30
b)9/30
c)187/30
d)197/30

O valor numérico de y é

a)2,79
b)3,05
c)4,05
d)27,9

O valor numérico de w é

a) - 7/24
b)- 1/24
c) 7/24
d) 1/3

Answer 1

Resposta:

irei tentar fazer aki e respondo aki blz.

Answer 2

$x=\frac{3}{4} \cdot8+\frac{2}{5}-\frac{1}{6}\\\\x=6+\frac{2}{5}-\frac{1}{6}\\\\x =6+\frac{7}{30}\\\\x = \frac{187}{30}$

$y=\frac{265}{100} + 2.8 \cdot 0.5\\\\y=2.65 + 1.4\\\\y = 4.05$

$w = -\frac{1}{4} \cdot \left [ \frac{2}{3}- \left(-1+\frac{1}{2} \right) \right]\\\\w = -\frac{1}{4} \cdot \left [ \frac{2}{3}+\frac{1}{2} \right]\\\\w = -\frac{1}{4} \cdot \frac{7}{6}\\\\w = -\frac{7}{24}$