Matematică
Vero25
2018-07-07 16:28:12
Afla nr. a: [100-(85:5+a)×2+289]×(2×3×4×5:2:2:5+1)=1775
Răspunsuri la întrebare
valerycamunteanu
2018-07-07 18:44:08

[100-(85:5+a)×2+289]×(2×3×4×5:2:3:5+1)=1775 [100-(17+a)×2+289]×(120:2:3:5+1)=1775 [100-(17+a)×2+289]×(60:3:5+1)=1775 [100-(17+a)×2+289]×(20:5+1)=1775 [100-(17+a)×2+289]×(4+1)=1775 [100-(17+a)×2+289]×5=1775 100-(17+a)×2+289=355 34=(17+a)×2 34=34+2xa ==> a=0

Adăugați un răspuns