Odpowiedź:
100% ---- 430
20% ------ x
x=20×430÷100= 86
x=86
b) 100%------82
150%----------x
x= 150×82÷100= 123
x=123
a)
430 = 100%
x = 20%
korzystajac z proporcji
x/430 = 20/100
x = 20/100 * 430 = 2 * 43 = 86
b)
82 = 100%
x = 150%
x/82 = 150/100
x = 150/100 * 82 = 3/2 * 82 = 3 * 41 = 123
c)
36 = 100%
x = 6%
x/36 = 6/100
x = 6/100 * 36 = 6/25 * 9 = 54/25 = 2 4/25
d)
45 = 100%
x = 220%
x/45 = 220/100
x = 220/100 * 45 = 11/5 * 45 = 11 * 9 = 99
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Odpowiedź:
100% ---- 430
20% ------ x
x=20×430÷100= 86
x=86
b) 100%------82
150%----------x
x= 150×82÷100= 123
x=123
Odpowiedź:
a)
430 = 100%
x = 20%
korzystajac z proporcji
x/430 = 20/100
x = 20/100 * 430 = 2 * 43 = 86
b)
82 = 100%
x = 150%
x/82 = 150/100
x = 150/100 * 82 = 3/2 * 82 = 3 * 41 = 123
c)
36 = 100%
x = 6%
x/36 = 6/100
x = 6/100 * 36 = 6/25 * 9 = 54/25 = 2 4/25
d)
45 = 100%
x = 220%
x/45 = 220/100
x = 220/100 * 45 = 11/5 * 45 = 11 * 9 = 99
Szczegółowe wyjaśnienie: