3200 км. 32 см *10000000=32 0000000 см= 3200 км (в 1 км-100000 см.)
<span>а) y : 3|4=4|25 : 4|5
y=3/4*4/25:4/5=3/4*4/24*5/4
y=3/20
б)(11|15а + 7|12): 7 1|4 = 1|3
11/15a+7/12=1/3*7 1/4=1/3*29/4
11/15a+7/12=29/12
11/15a=29/12-7/12
11/15a=22/12
a=22/12:11/15=22/12*15/11
a=5/2
a=2,5</span>
<span>8b+55=167</span>
b=14
7y+9-5y=13
y=2
(720+e)x501=365730
e=10
(k+2958):87=134
k=8700
<span>8e-14=6e+4</span>
<span>e=9</span>
<span>
</span>
<span>(c-3)x12=20-4x(c+2)</span>
<span>c=6</span>
<span>
</span>
<span>37<a<46</span>
<span><span> 5<b<29</span></span>
<span><span><span>75<e<97</span></span></span>