7*9 =63 дня проработали на другой стройке
63+9=72 дня работали на двух стройках
5 1/4х - 2 2/3 = 1 5/12
5 1/4х = 1 5/12 + 2 2/3 = 1 5/12 + 2 8/12
5 1/4х = 4 1/12
х = 4 1/12 : 5 1/4 = 49 /12 × 4/21 = 7/3 × 1/3
х = 7/9
A₁=2<span>√(a2+b2)
A₂=12</span><span>√(a2+b2)
A₃=36</span><span><span>√(a2+b2)
</span>A₄=80</span><span><span>√(a2+b2)
</span>A₅=150</span><span>√(a2+b2)</span>
15% = 0.15 = 15/100 = 3/20
6,4% = 0,064 = 64/1000 = 16/250
35% = 0,35 = 35/100 = 7/20
116% = 1,16 = 1 16/100 = 1 4/25
105% = 1,05 = 1 5/100 = 1 1/20
220% = 2,2 = 2 2/10 = 2 1/5
17/20 = 0,85 = 85%
11/25 = 0,44 = 44%
21/50 = 0,42 = 42%
0,05 = 5%
0,74 = 74%
1 1/2 = 1,5 = 150%
1 3/5 = 1,6 = 160%
2 3/25 = 2,12 = 212%