Odpowiedź :
[tex]4\% - 0.5m \\ 104\% - x \\ \\ x = \frac{104 \times 0.5}{4} = \frac{52}{ 4} = 13m[/tex]
[tex]13m - 0.5m = \boxed{ 12.5m}[/tex]
[tex]4\% - 0.5m \\ 104\% - x \\ \\ x = \frac{104 \times 0.5}{4} = \frac{52}{ 4} = 13m[/tex]
[tex]13m - 0.5m = \boxed{ 12.5m}[/tex]