Ответ:
Пошаговое объяснение:
3) 4 2/3:2=14/3*1/2=7/3=2 1/3
2 1/3-1.8=2 1/3-1 4/5=2 5/15-1 12/15=8/15
8/15*0.75=8/15*3/4=2/5=0.4
0.4-0.3=0.1
2.32:14.5=0.16
0.1:0.16=0.625
4) =-0.4(8*(-3)-9*5)=-0.4(-24-45)=-0.4*(-69)=27.6
=3(0.6*(-3)-0.4*5)=3(-1.8-2)=3*(-3.8)=-11.4
5)
1) 0.15х-0.6=9.9-0.3х+1.2
0.15х+0.3х=1.2+9.9+0.6
0.45х=11.7
х=11.7:0.45
х=26
2) у1=0
у-1=0
у2=1
3) х1=0
х-7=0
х2=7
х-3=0
х3=3
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Ответ:
Пошаговое объяснение:
3) 4 2/3:2=14/3*1/2=7/3=2 1/3
2 1/3-1.8=2 1/3-1 4/5=2 5/15-1 12/15=8/15
8/15*0.75=8/15*3/4=2/5=0.4
0.4-0.3=0.1
2.32:14.5=0.16
0.1:0.16=0.625
4) =-0.4(8*(-3)-9*5)=-0.4(-24-45)=-0.4*(-69)=27.6
=3(0.6*(-3)-0.4*5)=3(-1.8-2)=3*(-3.8)=-11.4
5)
1) 0.15х-0.6=9.9-0.3х+1.2
0.15х+0.3х=1.2+9.9+0.6
0.45х=11.7
х=11.7:0.45
х=26
2) у1=0
у-1=0
у2=1
3) х1=0
х-7=0
х2=7
х-3=0
х3=3