167
а)0.247= 0.3 1.486=1.5 27.753=27.8 107.961=108
б)0.629=0.63 1.673=1.67 10.351=10.35 39.697=39.70=39.7
в)573=570 168.5=170 455.97=460 599.599=600.000= 600
г) 74=100 263.7=270 555.55=600 99.999=100
40-100%
x-150%
x=(40*150)/100=60
<span>19-6x < -5
</span><span>-6x < -5-19
</span><span>-6x < -24
х>4
ответ 5
</span>
552-3Х-45=180
552-3Х=180+45
552-3Х=225
3Х=552-225
3Х=327
Х=327:3
Х=109
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