Fie x=primul fel de bomboane si y=al 2 fel.
Avem inecuatia:
[tex] \left \{ {{x+y=1} \atop {\frac{x}{55}+ \frac{y}{75} =63}} \right. [/tex]
[tex] \left \{ {{x+y=1} \atop {75x+55y=63}} \right. [/tex]
[tex]x=1-y[/tex]
[tex]75(1-y)+55y=63[/tex]
[tex]75-75y+55y=63[/tex]
[tex]-75y+55y=63-75[/tex]
[tex]-20y=-8(:-20
[/tex]
[tex]y=0.4
[/tex]
[tex]x=1-0.4
[/tex]
[tex]x=0.6[/tex]
Raspuns: y=0.4 si x=0.6
