1
6 1/4-4 1/8=6 2/8-4 1/8=2 1/8
2 1/8*4=8 4/8=8 1/2
3 1/3:2 1/2=10/3*2/5=4/3=1 1/3
8 1/2+1 1/3=8 3/6+1 2/6=9 5/6
2
2 4/9+1 1/6=2 8/18+1 3/18=3 11/18
3 11/18*1 4/5=65/18*9/5=13/2=6 1/2
3 1/9:2 1/3=28/9*3/7=4/3=1 1/3
6 1/2-1 1/3=6 3/6-1 2/6=5 1/6
100%-(32%+40%)=100-72=28%
28% - 224кк
100% - Х
х=<u>224*100</u> = 800кг<u>
</u> 28
<u>
ответ 800кг</u>
Ответ:
Пошаговое объяснение:
=(19/5+7/3)×(-15/8)-25/6×3/5=
-(57+35)/15×15/8-5/2=-11.5-2.5=-14
2х - 3y = - 18
2x = 18 + 3y
x = 9 + 1,5y
5x - 2y = 50
5( 9 + 1,5y ) - 2y = 50
45 + 7,5y - 2y = 50
5,5y = 5
y = 50/55 = 10/11
x = 9 + ( 3/2 )•( 10/11 ) = 9 + 30/22 = 9 + 15/11 = 9 + 1 4/11 = 10 4/11
Ответ ( 10 4/11 ; 10/11 )