Question

daca 5 pe 2 ori x = 125 pe 18 atunci x este egal cu:

Answer 1

( 5 / 2 ) × X = 125 / 18

18 × 5 X = 2 × 125

90 X = 250

X = 25 / 9

Verific: 5 / 2 x 25 / 9 = 125 / 18

Answer 2

$\frac{5}{2} \times x = \frac{125}{18} \\ \\ \frac{5x}{2} = \frac{125}{18} \\ \\ 5x = \frac{125}{18} \times 2 = \frac{250}{18} \\ \\ 5x = \frac{125}{9} \\ \\ x = \frac{ \frac{125}{9} }{5} = \frac{125}{9 \times 5} = \frac{125}{45} = \frac{25}{9}$