Odpowiedzi

2009-05-14T15:51:53+02:00
A- 30:100= 0.3
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
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2009-05-14T15:53:49+02:00
2009-05-14T16:00:14+02:00
70=100% to 10%=7 więc 30%=3×7=21
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
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2009-05-14T16:02:36+02:00
A) 30%-70 10%-7 7*3=21
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
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