1) %
гектаров
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Отрезок AC
Отрезок CB
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Answers & Comments
1)
%
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3)![25x-12,4=57,6\\25x=70\\x=\frac{70}{25}\\ x=2\frac{4}{5} 25x-12,4=57,6\\25x=70\\x=\frac{70}{25}\\ x=2\frac{4}{5}](https://tex.z-dn.net/?f=25x-12%2C4%3D57%2C6%5C%5C25x%3D70%5C%5Cx%3D%5Cfrac%7B70%7D%7B25%7D%5C%5C%20x%3D2%5Cfrac%7B4%7D%7B5%7D)
4)![(2x+28,4):3=15\\2x+28,4=45\\2x=16,6\\x=8,3 (2x+28,4):3=15\\2x+28,4=45\\2x=16,6\\x=8,3](https://tex.z-dn.net/?f=%282x%2B28%2C4%29%3A3%3D15%5C%5C2x%2B28%2C4%3D45%5C%5C2x%3D16%2C6%5C%5Cx%3D8%2C3)
5)![-0,125*(-6,7)*(-8)=1*(-6,7)=-6,7 -0,125*(-6,7)*(-8)=1*(-6,7)=-6,7](https://tex.z-dn.net/?f=-0%2C125%2A%28-6%2C7%29%2A%28-8%29%3D1%2A%28-6%2C7%29%3D-6%2C7)
6)![\frac{-2,3+\frac{1}{6} }{-1\frac{2}{3}+0,6 } = \frac{-\frac{32}{15} }{-\frac{16}{15} } =\frac{32}{16}=2 \frac{-2,3+\frac{1}{6} }{-1\frac{2}{3}+0,6 } = \frac{-\frac{32}{15} }{-\frac{16}{15} } =\frac{32}{16}=2](https://tex.z-dn.net/?f=%5Cfrac%7B-2%2C3%2B%5Cfrac%7B1%7D%7B6%7D%20%7D%7B-1%5Cfrac%7B2%7D%7B3%7D%2B0%2C6%20%7D%20%3D%20%5Cfrac%7B-%5Cfrac%7B32%7D%7B15%7D%20%7D%7B-%5Cfrac%7B16%7D%7B15%7D%20%7D%20%3D%5Cfrac%7B32%7D%7B16%7D%3D2)