Question

Problema 3 ma ajutați pls .................

Answer 1

3T+5C=410      |*5
5T+3C=390      |*3

15T+25C=2050    -
15T+9C=1170
______=_______
16C=880 ⇒C=55

3T+5*55=410
3T=135 ⇒T=45

Xt+Xc=11⇒Xt=11-Xc
Xt*45+Xc*55=535 ⇒ (11-Xc)*45+Xc*55=535
11*45-Xc*45+Xc*55=535
Xc*10=535-495=40
Xc=4 camasi s-au cumparat
Xt=11-4
Xt=7 tricouri s-au cumparat