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360-x
x=360*100/500
x=72%
100%-72%=28%
ODP. Obniżka wynosi 28%
360 zl - x
360x100%/500 = 72%
100% - 72% = 28%
Odp: Obnizka telefonu wynosila 28%
x - mnozenie
/ - kreska ulamkowa
Mam nadzieje, ze pomoglem. ;]
360zł - cena telefonu po obniżce
x - procent
500zł - 100%
360zł - x%
x=360*100/500
x=36000/500
x=72%
100%-72%=28%
odp. Obniżka wynosi 28%