x-ilosc gołebi Janay=ilość gołębi Kazimierza100%-12%=88%=0,88x+y=47x=0,88yx=47-y47-y=0,88y-y-0,88y=-47-1,88y=-47y=47:1,88y=25x=0,88×25=22Odp:Jan ma 22, a Kazimierz 25 gołebi
188% -- 47
1% -- 0,25
100% -- 25
47 - 25 = 22
Kazimierz ma 25 gołębi
Jan ma 22 gołębie
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x-ilosc gołebi Jana
y=ilość gołębi Kazimierza
100%-12%=88%=0,88
x+y=47
x=0,88y
x=47-y
47-y=0,88y
-y-0,88y=-47
-1,88y=-47
y=47:1,88
y=25
x=0,88×25=22
Odp:Jan ma 22, a Kazimierz 25 gołebi
188% -- 47
1% -- 0,25
100% -- 25
47 - 25 = 22
Kazimierz ma 25 gołębi
Jan ma 22 gołębie