Question

Решите уровнение 1 4/9x=5,2
ДАМ 50 БАЛОВ СРОЧНО ПОМОГИТЕ

Answer 1

1 4/9 х = 5,2,

х = 5,2 :  1 4/9,

х = 5 2/10 : 13/9,

х = 52/10 * 9/13,

х = 36/10,

х = 3,6  

или:

х = 18/5,

х = 3 3/5

Answer 2

Ответ:

$x =\frac{18}{5}$

Пошаговое объяснение:

$1\frac{4}{9}x = 5,2\\\\\frac{13}{9}x = \frac{52}{10} \\\\x = \frac{52}{10} : \frac{13}{9} \\\\x = \frac{52}{10} * \frac{9}{13} \\\\x = \frac{4}{10} * \frac{9}{1} = \frac{36}{10} = \frac{18}{5}$

проверка

$1\frac{4}{9} * \frac{18}{5} = 5,2\\\\\frac{13}{9} * \frac{18}{5} = 5,2\\\\\frac{13 * 2}{5} = 5,2\\\\\frac{26}{5} = 5,2\\\\ 5,2 = 5,2$