А)Ответ: 90,81,72,54,18.
б)Ответ: 11,33,55,77,88.
в)Ответ: m,3m,5m,6m,10m.
(12.8348-5.5*(0.73+1.584)):0.25-0.18*(6-3.85)=-0.36005
1)1.584+0.73=2.314
2)5.5*2.314=12.727
3)12.8348-12.727=0.1078
4)6-3.85=2.15
5)0.1078*0.25=0.02695
6)2.15*0.18=0.387
7)0.02695-0.387=-0.36005
Z = 720 : 9 = 80
Ответ: 80
(4 - 14/33 * 1 целая 1/21) * 5 целых 5/8 = 20
1) 14/33 * 1 целая 1/21 = 14/33 * 22/21 = (2*2)/(3*3) = 4/9
2) 4 - 4/9 = 3 целых 9/9 - 4/9 = 3 целых 5/9
3) 3 целых 5/9 * 5 целых 5/8 = 32/9 * 45/8 = (4*5)/(1*1) = 20
<span>а) 32х=-4
x=-4:32
x=-4/32
x=-1/8
</span><span>б)-9х=-54
</span> x=-54:(-9)
x=6
<span>в)-45х=15
</span> x=15:(-45)
x=-1/3
<span>г)19х=-57
</span> x=-57:19
x=-3
<span>а) -17у = 68
y=68:(-17)
y=-4
б) 48у = -24
y=-24:48
y=-1/2
в) -64у = -8
y=-8:(-64)
y=1/8
г) -36у = -9
</span> y=-9:(-36)
y=1/4