Răspuns :
m+t=80 m=2c t=3c 2c+3c=80 c=16 varsta copilului m=2c=2x16=32 mama t=3c t=3x16=48 tata
m = varsta mamei
t = varsta tatalui
c = varsta copilului
m+t=80
c=[tex] \frac{m}{2} [/tex]⇒m=2c
c=[tex] \frac{t}{3} [/tex]⇒t=3c
2c+3c=80
5c=80
c=16
m=2*16
m=32
t=3*16
t=48
t = varsta tatalui
c = varsta copilului
m+t=80
c=[tex] \frac{m}{2} [/tex]⇒m=2c
c=[tex] \frac{t}{3} [/tex]⇒t=3c
2c+3c=80
5c=80
c=16
m=2*16
m=32
t=3*16
t=48