Question

Fie a si b invers proportionale cu 0,25 si 0,2, 3a+2b-6=60. Aflati a si b

Answer 1

{a,b} ip{0,25;0,2}⇒a=4K

b=5K

⇒12k+10K-6=60

22K=66

K=3

⇒a=12

b=15