Răspuns :
a,b,c-nr. pare consecutive⇒
⇒a=a
b=a+2
c=a+4
d+e=720
e=d+120
Ma=(a+b+c+d+e)÷5=180⇒a+b+c+d+e=180×5=900
a+a+2+a+4+720=900(am inlocuit)
3a+6+720=900
3a+726=900
3a=900-726
3a=174
a=174÷3
a=58
b=58+2=60
c=58+4=62
d+e=720
d+d+120=720 (am inlocuit)
2d=720-120
2d=600
d=600÷2
d=300⇒e=300+120=420
Raspuns:
a=58
b=60
c=62
d=300
e=420
Sper ca te-am ajutat!
Coroana, te rog!
a,b,c-nr. pare consecutive⇒
⇒a=a
b=a+2
c=a+4
d+e=720
e=d+120
Ma=(a+b+c+d+e)÷5=180⇒a+b+c+d+e=180×5=900
a+a+2+a+4+720=900(am inlocuit)
3a+6+720=900
3a+726=900
3a=900-726
3a=174
a=174÷3
a=58
b=58+2=60
c=58+4=62
d+e=720
d+d+120=720 (am inlocuit)
2d=720-120
2d=600
d=600÷2
d=300⇒e=300+120=420
Raspuns:
a=58
b=60
c=62
d=300
e=420
Sper ca te-am ajutat!
Coroana, te rog!