1) 35x - 18x + 13x = 900
35x - 5x = 900
30x = 900
x=30
2) 28a - 15a - 9a = 368
28a - 24a = 368
4a = 368
a = 92
1)31/24
2)5/24
3) 1/16
4)33/70
5)2/5
6)23/24
7)1/2
8)2/3
9)7/18
10)13/16
тут просто ответы без решения
Ответ: 3/10 ( три десятых)
( 5 * 300 ) / 4 = 1500 / 4 = 375G
( 3 * 6 ) / 4 = 18 / 4 = 4.5SM
( 7 * 27 ) / 6 = 189 / 6 = 31.5M
1CH15M = 75M ⇒ ( 5 * 75 ) / 3 = 375 / 3 = 125 = 2CH5M
( ( 1 * 1 ) * 18 ) / 3 = 18 / 3 = 6MIN
( 2 * 1 ) / 16 = 2 / 16 = 0.125 ⇒ ( 4 * 0.125 ) / 11 = 0.5 / 11 = 0.0455
( 3 * 9 ) / 11 = 27 / 11 , ( 3 * 1 ) / 7 = 3 / 7 ⇒ ( 3 * ( 27 / 11 ) ) / 7 = ( 81 / 11 ) / 7 = 81 / 77 = 1.051948052