\(\dfrac{x}{3,15}=\dfrac{0,15}{7,2}\Rightarrow x=\dfrac{0,15.3,15}{7,2}=0,065625\)
\(\dfrac{x}{3,15}=\dfrac{0,15}{7,2}\)
\(\Rightarrow7,2x=0,4725\)
\(\Rightarrow x=\dfrac{0,4725}{7,2}\)
\(\dfrac{x}{3,15}=\dfrac{0,15}{7,2}\)
\(\Rightarrow7,2x=3,15.0,15\)
\(\Rightarrow7,2x=0,4725\)
\(\Rightarrow x=0,065625\)