Răspuns :
[tex]\frac{60}{100}[/tex]*700=60*7=420 grame lana
[tex]\frac{35}{100}[/tex]*700=35*7=245 grame matase
[tex]\frac{5}{100}[/tex]*700=5*7=35 grame viscosa
Răspuns:
Explicație pas cu pas:
100%............................................700g
60%..............................................x=700×60/100=420g lana
100%...........................................700g
35%..............................................y=700×35/100=245 g matase
100%...........................................700g
5%................................................xz=700×5/100=35g vascoza