(15+26)-6 = (20+21)-6 = 41-6 = 35
___
(40+54)-34 = 94 - 34 = 50
___
(63+9)-13 = (62+10)-13 = 72-13 = 70-11 = 59
<span>x:480=9600
</span>х=9600*480
х=4608000
Ответ:х=<span>4608000</span>
13/3*4*3/8
13/3*3/8=13/8
4/1*13/8=13/2
5/3/5 : 1/3/5 =<span>28/5 : 8/5 = 28/8=7/2
</span><span>высота окна = 1 1/7= 8/7, значит высота зала = 8/7*7/2=4 метра</span>