Question

8 / 14 = x / 21 9 / X=3, 14. 19,2:x=96:2,5​

Answer 1

Ответ:

а) 8/14=х/21,9

8*21=14*х

168=14*х

168:14=12

8/14=12/14

б) 9:x= 3,14

9:3,14=2.86

в) 19,2:x=96:2,5​

19,2*2,5=х*96

48=х*96

96:48=2

19,2:2=96:2,5

Пошаговое объяснение:

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Answer 2

Let's solve each of the given equations:

1. $\frac{8}{14} = \frac{x}{21}$

   Cross-multiply to solve for $x$:

   $8 \times 21 = 14 \times x$

   $168 = 14x$

   Divide both sides by 14:

   $x = \frac{168}{14} = 12$

2. $\frac{9}{x} = 3$

   Multiply both sides by $x$ to solve for $x$:

   $9 = 3x$

   Divide both sides by 3:

   $x = \frac{9}{3} = 3$

3. $\frac{14}{19.2} = \frac{x}{96}$

   Cross-multiply to solve for $x$:

   $14 \times 96 = 19.2 \times x$

   $1344 = 19.2x$

   Divide both sides by 19.2:

   $x = \frac{1344}{19.2} \approx 70$

4. $\frac{2.5}{x} = \frac{96}{2.5}$

   Cross-multiply to solve for $x$:

   $2.5 \times 2.5 = 96 \times x$

   $6.25 = 96x$

   Divide both sides by 96:

   $x = \frac{6.25}{96} \approx 0.065$

So, the solutions are:

1. $x = 12$
2. $x = 3$
3. $x \approx 70$
4. $x \approx 0.065$