Răspunsuri

2014-08-05T12:58:02+03:00
A,b   dp cu 3,5

a/3=b/5=k

a=3k
b=5k

3a+2b=38
3*3k+2*5k=38
9k+10k=38
19k=38
k=2

a=3*2=6
b=5*2=10
15 4 15