Jaka to liczba której 66 i 2/3 % jest równe 14 ?
21
spr.
100%-----21
66.6%----x
x=(66.6%*21):100%= 21
100%-----x
66.6%----14
x=100%*14:66,6=21
;))
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21
spr.
100%-----21
66.6%----x
x=(66.6%*21):100%= 21
100%-----x
66.6%----14
x=100%*14:66,6=21
;))