8100:(340-х)=90
8100:90=340-х
90=340-х
-х=-250
х=250
Ответ:250
5X + X + X + 25 = 74
7X = 49
X = 7
Ответ: 7, 35, 32
Площадь круга = 2*пи*радиус в квадрате=2*3,14*12,56^2=990.693 дм
13<span>, </span>17<span>, </span>19<span>, </span>23<span>, </span>29<span>, </span>31<span>, </span>37
101<span>, </span>103<span>, </span>107<span>, </span>109<span>, </span>113<span>, </span>127<span>, </span>131<span>, </span>137<span>, </span>139<span>, </span>149<span>, </span>151<span>, </span>157
918-306*15/25=0
2804*81-1407*54=92826
9792/32+8416/32=569
(242526+18354)/(15*4)=4348
2. 1)3 2 1
2)2 3 1
3)2 3 1
4)2 3 1