Odpowiedzi

2009-10-19T21:43:54+02:00
2009-10-19T21:45:46+02:00
A)310-100%
93-x% 9300:310=30%
b)4800:80=60%
c)2500:102= 24,5098...
2009-10-19T21:46:25+02:00
A)93/310*100%=9300/310=30%
b)48/80*100%=4800/80=60%
c)25/102*100%=2500/102=24 52/102=24,50