Odpowiedź:
90% = 0,9 120 % = 1,2
c = 0,9 a
d = 1,2 b
więc
[tex]P_1 = a*b[/tex]
[tex]P_2 = c*d = 0,9 a*1,2 b = 1,08 a*b[/tex]
[tex]\frac{P_2}{P_1} = \frac{1,08 a*b}{a*b} = 1,08 =[/tex] 108 %
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Odpowiedź:
90% = 0,9 120 % = 1,2
c = 0,9 a
d = 1,2 b
więc
[tex]P_1 = a*b[/tex]
[tex]P_2 = c*d = 0,9 a*1,2 b = 1,08 a*b[/tex]
[tex]\frac{P_2}{P_1} = \frac{1,08 a*b}{a*b} = 1,08 =[/tex] 108 %
=============================
Szczegółowe wyjaśnienie: