Răspunsuri

2014-03-09T14:34:39+02:00
{a,b,c)d.p.{3,4,5}=> a/3=b/4=c/5=k
a=3k
b=4k
c=5k
si acum inlocuiesti in (a+b+c)/3=144
3k+4k+5k=144*3
12k=432
k=36 si de aici afli a,b,c

2014-03-09T14:38:37+02:00
{a,b,c)d.p.{3,4,5}=> a/3=b/4=c/5=k
a=3k
b=4k
c=5k
si acum inlocuiesti in (a+b+c)/3=144
3k+4k+5k=144*3
12k=432
k=36 si de aici afli a,b,c