500/40=12.5 округляем до 11 тюльпанов т.к. нам нужно нечетное кол-во тюльпанов и уложиться в бюджет 500 руб.
Ответ:11 тюльпанов
<span><span><span><span>x2</span>+<span>y2</span></span><span><span>−6</span>x</span></span><span><span>−8</span>y</span></span>=<span><span>−21</span>+<span>0
</span></span><span><span><span><span>x2</span>+<span>y2</span></span><span><span>−6</span>x</span></span><span><span>−8</span>y</span></span>=<span>−<span>21
</span></span><span><span>(<span>x<span>−3</span></span>)</span>2</span><span>−<span>9
</span></span><span><span><span><span><span>(<span>x<span>−3</span></span>)</span>2</span><span>−9</span></span>+<span>y2</span></span><span><span>−8</span>y</span></span>=<span>−<span>21
</span></span><span><span><span><span>(<span>x<span>−3</span></span>)</span>2</span>+<span>y2</span></span><span><span>−8</span>y</span></span>=<span><span>−21</span>+<span>9
</span></span><span><span>(<span>y<span>−4</span></span>)</span>2</span><span>−<span>16
</span></span><span><span><span><span>(<span>x<span>−3</span></span>)</span>2</span>+<span><span>(<span>y<span>−4</span></span>)</span>2</span></span><span>−16</span></span>=<span><span>−21</span>+<span>9
</span></span><span><span><span>(<span>x<span>−3</span></span>)</span>2</span><span><span>(<span>y<span>−4</span></span>)</span>2</span></span>=<span><span><span>−21</span>+9</span>+<span>16
</span></span><span><span><span>(<span>x<span>−3</span></span>)</span>2</span>+<span><span>(<span>y<span>−4</span></span>)</span>2</span></span>=<span><span>−12</span>+<span>16
</span></span><span><span><span>(<span>x<span>−3</span></span>)</span>2</span>+<span><span>(<span>y<span>−4</span></span>)</span>2</span></span>=<span>4</span>
5+3 б
Приведите неравенство к виду kx > b, где k и b – целые числа: 2 3 4 3 5 5 7 3 4 + y − > y + − y
Срочно надо!
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Ответ
Ответ дан
dubovaalisalis1
dubovaalisalis1
Ответ:
Пошаговое объяснение:
Ответ:
y>-1
Пошаговое объяснение:
Приведем к общему знаменателю 20, в числителе будет:
20*4+4(7y-3)>5(3y+5)-10*3y;
80+28y-12>15y+25-30y
28y-15y+30y>25-80+12
43y>-43
y>-1
в данном случае b= -1, k=1
100-15=85
17000:85=200
200*100=20000
Ответ: компьютер стоил 20000 рублей
