Множество
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10000-30*90= 897300
10000-90*90= 891900
10000-1000*90= 810000
1.
<span>(-2,5+3/2/3):(-2/11/12)=(-25/10+11/3)
1.1.</span>
(-25/10+11/3)= <span>(-75+33)/30=-42/30=-7/5
1.2.(-7/5)*(-12/35)=12/25=0,48
2.</span>
(-1/1/3-3,5)×(-1/1/29)=(-4/3-35/10)·(-30/29)=(-4/3-7/2)·(-30/29)=
(-8-21)/6·)
(-30/29)=(29/6)·(30/29)=5
3.
<span>-2/2/3-х=1/1/9,(-8/3)-х=10/9, х=-8/3-10/9=-24-10/9=-34/9
х=-3 7/9( три целых семь девятых)</span>
960\100=9,6
9,6*75=720
960-720=240
240\6*5=200