Question

2 sticle........3bidoane.......10,5 l
3 sticle........6bidoane........19,5 l
1 sticlă...........? litri
1 bidon............? litri
Vă rog!​

Answer 1

o inmultesti pe prima cu 2 si ramane
4s......6b......21l
3s......6b......19,5l
—————————(-) le scazi
1s......./......1,5l
1s=1,5l
3s+6b=19,5l
3*(1,5)+6b=19,5l
4,5l+6b=19,5l
6b=15l/:6
b=2,5l


o sticla are 1,5l
un bidon are 2,5l

Answer 2

Răspuns:

2 sticle.........3 bidoane.........10,5 l /*3

3 sticle..........6 bidoane........19,5 l /*2

..................................................................

6 sticle..........9 bidoane............31,5 l

6 sticle..........12 bidoane...........39 l

.................................................................

/......................3 bidoane............7,5 l

=> 1 bidon=7,5:3=2,5 l

2,5*9=22,5 l (9 bidoane)

31,5-22,5=9 l (6 sticle)

9:6=1,5 l ( o sticla)

Explicație pas cu pas:

Sper ca te-am ajutat :)))