1,2/2 = 3х/7,2
6/10 = 3х/7,2
30х = 43,2
х = 43,2/30
х = 1 13,2/30
х = 1 132/300
х = 1,44
Ответ: 1,44
<span>Log1,5 log8(4log3 * 4^√81)</span>
1)3 1/2*2 2/7= 7/2 * 16/7= 16/2 = 8
2) 31/103 * (4 4/15 - 1 44/45)= 31/103 * (64/15- 89/45) = 31/103 * ((192-89)/45)= 31/103 * 103/45= 31/45
3) 8-31/45 = 8/1 - 31/45= (360-31)/45 = 329/45 = 7 14/45
<span>22*6+22*4-196+20=132+22*4-196+20=154*4-196+20=616-196+20=420+20=440 Ответ:440</span>
=4/9*(-0,77-2,83)= 4/9 * (-3,6)= 4/9*(-36/10)= - 2*4/5= - 8/5= - 1 3/5