Răspunsuri

2014-04-16T15:35:15+03:00
(a+b)/2=3.09
a+b=6.18

a=2b
2b+b=6.18
3b=6.18
b=6.18:3
b=2.06

a=2.06*2
a=4.12
5 3 5
2014-04-16T15:37:02+03:00
3.09*2=6.18

6.18:3=2.06

2.06*2=4.12

verificare:(4.12+2.06):2=3.09
3 4 3