Răspunsuri

2014-04-24T22:07:47+03:00
(a+b)/2=21.35
a+b=21.35*2
a+b=42.7
a=18.3

18.3+b=42.7
b=42.7-18.3
b=24.4
2014-04-24T22:10:20+03:00
A+b/2=21,35=> a+b=21,35*2=42,7 a=18,3 b=42,7-18,3=> b=24,4 Sper ca te,am ajutat ;)
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