celina 70
ania 70 - 40%=28
basia 28 + 40%=11
Chyba dobrze
y=Ania- 140%x ; 60%z
x=Basia-
z=Celina-70 autografów40/100*70=2870-28=42<---autografy Ani
42=140%x=100%x=(42*100)/140=420/14=30<----autografy Basi
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celina 70
ania 70 - 40%=28
basia 28 + 40%=11
Chyba dobrze
y=Ania- 140%x ; 60%z
x=Basia-
z=Celina-70 autografów
40/100*70=28
70-28=42<---autografy Ani
42=140%
x=100%
x=(42*100)/140=420/14=30<----autografy Basi