👤

100 de balonase se impart la trei copii astfel: primii doi au 72, iar ultimii doi 59.Cate baloane are fiecare copil ?

Răspuns :


[tex]a+b+c=100[/tex]
[tex]a+b=72[/tex]
[tex]b+c=59[/tex]

[tex]c=100-72=28[/tex]
[tex]a=100-59=41[/tex]
[tex]b=59-28=31[/tex]
x+y+z=100
x+y=72
y+z=59

z=100-72
z=28 baloane

x=100-59
x=41 baloane

y=100-28-41
y=31 baloane