Sagot :
[tex]t = gh / 10\ \ /\cdot10\\\\10t=gh\ /:g\ \ \ \ and\ \ \ g \neq 0\\\\h= \frac{10t}{g} [/tex]
[tex]t =\frac{ gh }{10} \ \ / *10 \\ \\ 10t =\frac{ gh }{10}\cdot 10t \\ \\10t=gh \ \ /:g \\ \\g\neq 0 \\ \\h=\frac{10t}{g}[/tex]