Răspunsuri

2014-04-06T16:57:07+03:00
Femei-20/100*b
Barbati-b
20/100*b+b=120
1.2b=120
b=100 barbati
femei:120-100=20
raspuns:20-f,100-b
1.2b?
ADica 1.2 b ?
am adus la acelasi numitor -100,am adunat 100+20=120 apoi 120b/100=1.2 b
2014-04-06T17:17:33+03:00
100 numitor comun, 100+20=120, apoi 120:100=1.2 barbati