Odpowiedź:
d) x = 1800
e) x = 25
f) x = 50
Szczegółowe wyjaśnienie:
d)
36% * x = 648
0,36x = 648 /:0,36
x = 1800
e)
72% * x = 18
0,72x = 18 /:0,72
x = 25
f)
48% * x = 24
0,48x = 24 /:0,48
x = 50
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Odpowiedź:
d) x = 1800
e) x = 25
f) x = 50
Szczegółowe wyjaśnienie:
d)
36% * x = 648
0,36x = 648 /:0,36
x = 1800
e)
72% * x = 18
0,72x = 18 /:0,72
x = 25
f)
48% * x = 24
0,48x = 24 /:0,48
x = 50