Răspunsuri

2014-01-08T16:24:29+02:00
Au ponderile astea dar care i intrebarea ?

sa se afle media aritmetica ponderara
8*0.5+15*0.(6)+24*0.1(6)/0.5+0.(6)+0.1(6)= 4+9+4/1.(3) = 13.07 = 13 rotunjit,,, (6) inseamna in perioada