Răspunsuri

2014-09-12T14:55:26+03:00
5c+6m=360
2c+8m=200 /:2=>

5c+6m=360
c+4m=100=> c=100-4m

5*(100-4m)+6m=360
500-20m+6m=360
500-360=20m-6m
140=14m
m=140:14
m=10 lei pretul unui marker

c=100-4*10
c=100-40
c=60 lei pretul unei carti
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