Răspunsuri

  • Utilizator Brainly
2014-03-01T20:08:22+02:00
Daca avem 2 parti plus 2 parti plus 6 parti inseamna ca intregul are 2+2+6=10 parti; 
deci ciment 2/10=1/5; nisip 2/10=1/5; pietris 6/10=3/5; in procente: ciment 20%, nisip 20%, pietris 60%.
2014-03-01T23:12:56+02:00
vom avea .....ciment 20... nisip 20%,pietris 60%... mult noroc! POLICE