Question

VA ROG FRUMOS
Detrminati numarul natural n incat urmatoarele fractii sa fie egale cu fractia 5 supra 6
55 supra n+2
50 supra n-14
VOTEZ CEL MAI BUN

Answer 1

55/n+2=50/n-14=5/6 6•50=(n-14)•5 300=5n-70 5n=-70-300 5n=+230 n=230:5 n=46

Answer 2

55/(n+2) = 5/6
55*6=5*(n+2)
330=5n+10
5n=330-10
5n=320
n=320:5
n=64

50/(n-14) =5/6
50*6=5*(n-14)
300=5n-70
300+70=5n
370=5n
n=370:5
n=74