Verified answer

1)а.35.6

б.-64/9

в.3.3

г.-2.47

д.1/24

е.-29/11

ж.0.888

з.-2.4

i.-1 1/5

2)х=-47

х=-4/3

у=-54/5

3)а.1/3×(-2.5)(-3)×40×0.01

1/3×(-5/2)(-3)×40×1/100

20×1/20

=1

б.6 3/11×(-8 4/5)(-2 2/11)(-8 4/5)=-69×44×24×44/11×5×11×5=-69×4×24×4/25=-26496/25

4)-1 3/4:(-7)+6.3:10-(-3 7/10)5=7×1/4×7 +63/100+37/10×5=1/4+63/100+37/2=969/50