Znajdź liczbę, Której 18% jest równe wartości wyrażenia ( 2/7) do potegi -2 : (3/14) do potęgi -2
x - szukana liczba
18%x = (2/7) do potegi -2 : (3/14) do potegi -2
0,18x = (7/2) do potegi 2 : (14/3) do potegi 2
0,18x = (49/4) : (196/9)
0,18x = (49/4) * (9/196)
0,18x = (1/4) * (9/4)
0,18x = 9/16 | : 0,18
x = (9/16) * (100/18)
x = (1/4) * (25/2)
x = 0,25 * 12,5
x = 3,125
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x - szukana liczba
18%x = (2/7) do potegi -2 : (3/14) do potegi -2
0,18x = (7/2) do potegi 2 : (14/3) do potegi 2
0,18x = (49/4) : (196/9)
0,18x = (49/4) * (9/196)
0,18x = (1/4) * (9/4)
0,18x = 9/16 | : 0,18
x = (9/16) * (100/18)
x = (1/4) * (25/2)
x = 0,25 * 12,5
x = 3,125