Question

Rapiddd va roggg.........​

Answer 1

x/1,2=[(25/10-5/3)²]/(5/24)

x/1,2=[(25·3-5·10)/30]²/(5/24)

x/1,2=[(75-50)/30]²/(5/24)

x/1,2=(25/30)²/(5/24)

x/1,2=(625/900):5/24

x/1,2=625/900·24/5         simplif

x/1,2=125/450·12/1

x/1,2=(125·6)/225

x/1,2=10/3

3x=10·1,2

x=12/3

x=4

Answer 2

Explicație pas cu pas:

$\frac{x}{1.2} = \frac{(2.5 - 1 \frac{2}{3}) {}^{2} }{ \frac{5}{24} }$

$\frac{x}{ \frac{6}{5} } = \frac{ (\frac{5}{2} - \frac{5}{3}) {}^{2} }{ \frac{5}{24} }$

$\frac{5x}{6} = \frac{( \frac{5}{6}) {}^{2} }{ \frac{5}{24} }$

$\frac{5x}{6} = \frac{24 \times ( \frac{5}{6}) {}^{2} }{5}$

$\frac{5x}{6} = \frac{24 \times \frac{ {5}^{2} }{ {6}^{2} } }{5}$

$\frac{5x}{6} = \frac{24 \times \frac{25}{36} }{5}$

$\frac{5x}{6} = \frac{2 \times \frac{25}{3} }{5}$

$\frac{5x}{6} = \frac{ \frac{50}{3} }{5}$

$\frac{5x}{6} = \frac{10}{3}$

$15x = 60$

$x = 60 \div 15$

$x = 4$