Question

Ajutor. URGENT!
Dau 40 de puncte​

Answer 1

Răspuns:

1/3 × 7/9 = x × 8/3

7/27 = 8x/3

7/9 = 8x

x = 7/9 : 8

x = 7/72

Answer 2

$\bf \dfrac{x}{\dfrac{1}{3}} = \dfrac{0,(7)}{2\dfrac{2}{3} }$

$\bf \dfrac{x}{\dfrac{1}{3}} = \dfrac{\dfrac{7}{9}}{\dfrac{2\cdot3+3}{3} }$

$\bf \dfrac{x}{1}\cdot\dfrac{3}{1} = \dfrac{\dfrac{7}{9}}{\dfrac{8}{3} }$

$\bf 3x = \dfrac{7}{9}}:{\dfrac{8}{3} }$

$\bf 3x = \dfrac{7}{9}}\cdot{\dfrac{3}{8} }$

$\bf 3x = \dfrac{7}{3}}\cdot{\dfrac{1}{8} }$

$\bf 3x = \dfrac{7}{24}}$

$\bf 3x \cdot 24 = 7$

$\bf 72x = 7$

$\boxed{\bf x = \dfrac{7}{72}}}$