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70*0,3= 21
b- 60:100= 0,6
250*0,6= 150
c- 5:100= 0,05
180*0,05=9
d- 90:100=0,9
360*0,9= 324
e- 75:100= 0,75
60*0,75=45
b)150
c)9
d)324
e)45
250 10% to 25 × 6=150
180 10% to 18 więc 5% =9
360 10% to 36 więc 360-36=324
60 ×¾ = 45 bo 75% to ¾ całośći
B) 60%-250 10%-25 6*25=150
c)5%-180 10%-18 18:2=9 5%=9
d)90% -360 10%-36 360-36=324 90%-324
e)75% -60 10%-6 6:2=3 7*6=42+3=45 75%-45