Question

решите уравнение
7 1\2:4 1\2=x:3\25
24\x+2=1\5
y-5\6=4|3

Answer 1

Ответ:

1. $x= \frac{1}{5} = 0,2$
2. $-13\frac{1}{3} = -13,(3)$
3. $y = 2\frac{1}{6} = 2,1(6)$

Пошаговое объяснение:

1, $7 \frac{1}{2} : 4\frac{1}{2} = x: \frac{3}{25}$

$\frac{15}{2} * \frac{2}{9} = \frac{25}{3} x$

$\frac{5}{3} = \frac{25}{3} x$

$x= \frac{5}{3} : \frac{25}{3}$

$x= \frac{5}{3} * \frac{3}{25}$

$x= \frac{1}{5} = 0,2$

2. $\frac{24}{x} +2 = \frac{1}{5}$

$\frac{24}{x} + \frac{10}{5} = \frac{1}{5}$

$\frac{24}{x} = \frac{1}{5} - \frac{10}{5}$

$\frac{24}{x} = -\frac{9}{5}$

x* (-9) = 24 * 5

-9x = 120

x = 120 : (-9)

$x = 120 : (-9) = -13 \frac{3}{9}</p><p>[tex]x = -13\frac{1}{3} = -13,(3)$

3. $y - \frac{5}{6} = \frac{4}{3}$

$y = \frac{4}{3} + \frac{5}{6}$

$y = \frac{4*2}{3*2} + \frac{5}{6}$

$y = \frac{8}{6} + \frac{5}{6} = \frac{8+5}{6} = \frac{13}{6}$

$y = 2\frac{1}{6} = 2,1(6)$