zad 20 b) str 128 kl 1 gim prosze o szybko odpowiedz !!
Zad . 20 / 128
b)
P= 9 x 5 / 2
P = 22, 5 j 2
22,5 = 7 x b / 2 / x 2
22,5 x 2 = 7 x b / 7
45 / 7 = b
b = 6
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Zad . 20 / 128
b)
P= 9 x 5 / 2
P = 22, 5 j 2
22,5 = 7 x b / 2 / x 2
22,5 x 2 = 7 x b / 7
45 / 7 = b
b = 6