Question

determinati numerele a,b si c invers proportionale cu numerele 1,5:2,4: si 3 , stiind ca x+2y+3z=244

Answer 1

1,5=15/10=3/2
2,4=24/10=12/5
3a/2=12b/5=3c=k
a=2k/3
b=5k/12
c=k/3
2k/3 + 5k/6 + k = 244 |×6
4k+5k+6k=1464
15k=1464 => k=97,6
a=65,0(6)
b=40,(6)
c=32,5(3)