Question

Intr-un vas in forma de cub sunt 75dm de apa.Calculati muchia cubului,stiind cat apa se ridica doar la 3supra 5 din inaltimea vasului.

Answer 1

3/5=75dm³
5-3=2
2/5=50dm³
volum total=75+50=125
muchia^3=125
muchia=5

Answer 2

V cub=75dm³;
3/5 ·x=75dm⇒x=75·5/3=375/3=125;
⇒V cub=l³;
⇒l³=125dm
⇒l³=5³dm⇒l=5dm[muchia cubului];