15% liczby 10 to prosze o całe działanie z góry dziękuję daje naj
100 - 10
15 - x
x=15*10/100=150/100=1,5
100% - 1015% - xx=15*10: 100= 150 : 100 = 1,5
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100 - 10
15 - x
x=15*10/100=150/100=1,5
100% - 10
15% - x
x=15*10: 100= 150 : 100 = 1,5