Решите пожалуйста!!!!. Created by maximutar. matematika-ru

Решите пожалуйста!!!!...

iramazurk

$\Big(x-9\dfrac{7}{9} \Big)\cdot y+0,5=x\cdot y-9\dfrac{7}{9}\cdot y+0,5=16\dfrac{1}{2}\cdot \dfrac{18}{33}-9\dfrac{7}{9}\cdot \dfrac{18}{33}+0,5=\\\\=\dfrac{33}{2} \cdot \dfrac{18}{33}-\dfrac{88}{9}\cdot \dfrac{18}{33}+0,5=9-\dfrac{16}{3}+\dfrac{1}{2}=9-\dfrac{32-3}{6} =9-\dfrac{29}{6}=\\\\=9-4\dfrac{5}{6}=\boxed{4\dfrac{1}{6}}$

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Universalka

Verified answer

Ответ:

Пошаговое объяснение:

(16. 1/2 - 9. 7/9) * 18/33 + 0,5 = 4. 1/6

1) 16. 1/2 - 9. 7/9 =

16. 9/18 - 9. 14/18 =

15. 27/18 - 9. 14/18 = 6. 13/18

2) 6. 13/18 * 18/33 = 121/18 * 18/33 = 121/33 = 3. 22/33 =

3. 2/3

3) 3. 2/3 + 0,5 = 3. 2/3 + 5/10 = 3. 20/30 + 15/30 =

3. 35/30 = 4. 5/30 = 4. 1/6

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