Question

Am nevoie de rezolvarea acestui exercițiu cu explicație.. vă rog frumos, am mare nevoie. Ofer coroana + 50 P + inimă + 5*. Urgent!!

Answer 1

Explicație pas cu pas:

a)

$\dfrac{27^{(3} }{15} = \dfrac{^{2)} 9}{5} = \dfrac{18}{10} = 1.8$

b)

$\dfrac{525}{100} = 5.25$

c)

$\dfrac{654}{4} = 163\dfrac{2^{(2}}{4} = 163\dfrac{1^{(5} }{2} = 163\dfrac{5}{10} = 163.5$

d)

$\dfrac{^{10)} 5.4}{13.5} = \dfrac{54^{(27}}{135} = \dfrac{^{2)}2}{5} = \dfrac{4}{10} = 0.4$

e)

$\dfrac{2.(36)}{5.(45)} = \dfrac{\dfrac{236 - 2}{99}}{\dfrac{545 - 5}{99}} = \dfrac{234 ^{(6} }{540} = \dfrac{39}{90} = 0.4(3)$

f)

$\dfrac{\Big( \dfrac{1}{2} + \dfrac{1}{2}\Big) : 2}{\Big(\dfrac{3}{2} - \dfrac{2}{3}\Big) \cdot 12} = \dfrac{ \dfrac{2}{2} : 2}{\dfrac{3}{2} \cdot 12 - \dfrac{2}{3} \cdot 12} = \dfrac{1 : 2}{18 - 8} = \dfrac{0.5}{10} = 0.05$

g)

$\dfrac{\Big( \dfrac{1}{18} + \dfrac{^{2)} 2}{9}\Big) \cdot 6}{\Big(\dfrac{47}{18} - \dfrac{^{3)}5}{6}\Big) : \dfrac{1}{3} } = \dfrac{\dfrac{1 + 4}{18} \cdot 6}{\dfrac{47 - 15}{18} \cdot 3} = \dfrac{\dfrac{5}{18} \cdot 6}{\dfrac{32}{18} \cdot 3} = \dfrac{\dfrac{5}{3}}{\dfrac{32}{6}} = \dfrac{5 \cdot 6}{32 \cdot 3} = \dfrac{^{625)} 5}{16} = \dfrac{3125}{10000} = 0.3125$