Question

dau coroana +puncte +5stele ​

Answer 1

Răspuns:

Explicație pas cu pas:

∡=C = 180°-90°-60°

∡C=30°→[AB]=[BC] / 2 ={AD} =6cm →[BC]=6*2→[BC } =12 cm

AC²=BC²-AB²=144-36=108

AC=√108

AC= 6√3

-

x= ceapa

3x=cartofii

x+170= varza

x+3x+x+170=1250

5x=1250-170

5x=1080

x=1080:5

x=216 kg ( CEAPA )

3*x=216*3

3x=648 ( CARTOFI )

X+170=216+170=386  ( VARZA )