Răspunsuri

2014-03-04T19:02:55+02:00
A+a/4=250  aducem la acelasi numitor=>4a+a=1000=>5a=1000=>a=200

2014-03-04T19:14:13+02:00
A+/4=250 aducem la aceasi numitor=>a+a=1000=>a+a=1000=>5a=1000=>a=200