Răspunsuri

2014-05-22T09:49:06+03:00
P+2c=11
c=p+2.5

p+2(p+2.5)=11
p+2p+5=11
3p=11-5
3p=6
p=6:3
p=2 lei

c=2+2.5
c=4.5 lei
1 5 1
2014-05-22T09:50:18+03:00


X-PIXUL

Y-CAIETUL

X+2Y=11

X=Y-2,5

Y-2,5+2Y=11

3Y=13.5

Y=4,5

X=4,5-2,5

X=2