Question

 va rog
 determinati nr naturale xsi y stiind ca :sunt invers proportionale cu 2 si 3 ,iar x-y =10

Answer 1

x-y=10
{x,y}ip{2,3}
2x=3y=k
2x=k⇒x=k/2
3y=k⇒y=k/3
k/2-k/3=10
(3k-2k)/6=10
k/6=10
k=6·10⇒k=60
x=60/2
x=30
y=60/3
y=20
30-20=10