Question

Va rog frumos...Dau coroana

Answer 1

e) 45......100%
 9............x
x=9*100:45=20%
f)240.............100%
  12.............x
x=12*100:240=5%

15.a)
150...........100%
x................100+10=110%
x=150*110:100=165 lei.

b)
245.............100%
x..................100-20=80%
x=245*80:100=196 lei.

c)
200........100%
x..............100+10=110%
x=200*110:100=220.

220............100%
x...............100-20=80%
x=220*80:100= 176 lei.

d)
345.......100%
x.............100+5=105%
x=345*105:100=362.25 lei

362.5...........100%
x....................100+10=110%
x=362.5*110:100= 398,457≈ 398,5 0 lei