Răspunsuri

2014-01-22T18:07:16+02:00
F+b=35
f=125*b/100
125*b/100+b=35 elimini numitorul amplificand b si 35 cu 100
125*b+100*b=3500
225*b=3500
b=3500/225
b≈15
f≈22
1 5 1
2014-01-22T18:10:33+02:00