(3+4)×(5-4)+(2×3)-7=6
(27÷3)-4+(2+8)×2=25
1)0,4+1,83=2,23
2)6,4-0,15=6,25
3)9,8*0,3=2,94
4)7,2:0,01=720
Условие:
11a=14b
22c=21b
10c=3d
5e=2d
решение:
13e=2d/5*13=5.2d
5.2d=10c/3*5.2=17 1/3 c
52/3c=21/22b*52/3=182/11b
182/11b=11a/14*182/11=2002/154a=13a
ответ: 13 тугриков за 13 крон
<span>1) x+366=600-178
x + 366 = 422
x = 422 - 366
x = 56
</span><span>2) y:132=201-198
y : 132 = 3
y = 3 * 132
y = 396
</span><span>3) x+366=600+178
x + 366 = 778
x = 778 - 366
x = 412
</span><span>4) y:132=201-191
y : 132 = 10
y = 132 * 10
y = 1320</span>
135:5=27 240:5=48
594:9=66 135:9= 15