2000:f-670=1330
2000:f=1330+670
2000:f=2000
f=2000:2000
f=1.
X+Y+Z=650
X*8=Y*6=Z*4
X=0,5Z
Y=2/3 Z
Z+0,5Z+2/3Z=650
Z*(13/6)=650
Z=650*6/13=300
Y=600/3=200
X=150
Ответ: 300,200 и150 тыс.руб. под
4 %, 6 % и 8 % годовых, соответственно.
1)
15% = 0,15,
6,4% = 0,064,
35% = 0,35,
116% = 1,16,
105% = 1,05,
220% = 2,2,
2)
17/20 = 85/100 = 85%,
11/25 = 44/100 = 44%,
21/50 = 42/100 = 42%,
0,05 = 5%,
0,74 = 74%,
1 1/2 = 3/2 = 150/100 = 150%,
1 3/5 = 8/5 = 160/100 = 160%,
2 3/25 = 53/25 = 212/100 = 212%