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dau coroanaaaaaaa !!!!!

Dau Coroanaaaaaaa class=

Răspuns :

METODA 1:

m-Mihnea
r-Raluca

m+r=40
r=m+6

m+m+6=40
2m=40-6
2m=34
m=34:2
m=17

Mihnea= 17 timbre

Raluca= 17+6=23 timbre

METODA 2:

m /---/
r /---/+6
Total:40

40-6=34
34:2=17

Mihnea= 17 timbre
Raluca= 17+6=23 timbre
Raluca \------\-6\ }
Mihnea \------\ }40
40-6=34(2 segmente egale)
34:2=17 (Mihnea)
17+6=23(Raluca)