Question

92 балла да да 92 балла

Answer 1

1
4 3/8x*4/15=31/8*4/15*x=7/6*x
5 1/16*4/15=81/16*4/15=27/20=1 7/20
7/6*x+1 7/20=5/12*x+2 2/5
7/6*x-5/12*x=2 2/5-1 7/20
(14-5)/12*x=2 8/20-1 7/20
9/12*x=1 1/20
x=21/20*12/9
x=7/5=1, 4
2
2,(06)=(206<(6)-20,(6))/90=186/90=31/15
0<(27)=(27,(27)-0,(27))/99=27/99=3/11
0,4(09)=(409,(09)-4,(09))/990=405/990=9/22
x:31/15=3/11:9/22
x=31/15*3/11:9/22=31/15*3/11*22/9=62/45
x=1,3(7)

Answer 2

Than you very much !