Răspuns :
Notăm:
a→primul bidon
b→al doilea bidon
a=b+5
a+b=17
___________
? a,b
___________
Algebric:
a=b+5
b+b+5=17
2b+5=17
2b=17-5
2b=12
b=12:2
b=6
6+5=11 (a)
Grafic:
a: |------|5l }17
b: |------|
2 p.e+5=17
2 p.e=17-5
2 p.e=12
1 p.e=12:2
1 p.e=6 (b)
6+5=11 (a)
Verificare:
6+11=17 (A)
11-6=5 (A)
Răspuns:
a=11
b=6
Succes !
MiuMiku
a→primul bidon
b→al doilea bidon
a=b+5
a+b=17
___________
? a,b
___________
Algebric:
a=b+5
b+b+5=17
2b+5=17
2b=17-5
2b=12
b=12:2
b=6
6+5=11 (a)
Grafic:
a: |------|5l }17
b: |------|
2 p.e+5=17
2 p.e=17-5
2 p.e=12
1 p.e=12:2
1 p.e=6 (b)
6+5=11 (a)
Verificare:
6+11=17 (A)
11-6=5 (A)
Răspuns:
a=11
b=6
Succes !
MiuMiku