A = { a , b }
B = { 0,25; 0.2; }
A invers proportional cu B
3a+2b-6=60


Răspuns :

egalam cu k,
a/25/100=b/2/10=k,[tex]a/1/4=b/1/5=k[/tex],[tex]a=k/4 b=k/5[/tex],[tex]a=4k b=5k (invers proportionale)[/tex],
[tex]22k=46[/tex],k = 46/22=23/11,
a=4*23/11=92/11,
b=5*23/11=115/11