<span>НОК(45;135)=135, так,как 135 делится нацело на 45 </span>
5.08*7.5=38.1
1.344:4.2=0.32
1) 229 372 : 286 • 506 = 802 • 506 = 405 812.
<span>2) 282 370 : 302 : 85 = 935 : 85 = 11. </span>
<span>3) 195 840 : (32 • 18) = 195 840 : 576 = 340. </span>
<span>4) 538 • (301 608 : 426) = 538 • 708 = 380 904.
</span>
2x=(5-7)*3
2x=-6
x=-3
Подставим
5-(2*-3\3)=7
5-(-2)=7
5+2=7
S=ab
a+0,6a*b-0,2b=1,6a*0,8b=1,28ab=S
1,28=128%. 128-100=28%
S(1)