Question

4 gaste si 3 gaini cantaresc 33 kg.Iar 3 gaste si 4 gaini cantaresc 36 kg.Cat cantareste o gasca si m o gaina?​

Answer 1

Răspuns:

x-gaste si y-gaini

4x+3y=33

O gasca cantareste cat 4 gaini, adica x=4y

4x+3y=33=>

4(4y)+3y=33=>

16y+3y=33

19y=33

y=33/19.

O gaina cantareste 33/19.