Question

6,4 / 7,2 = 5,6 х / 0,9

Answer 1

Ответ:

Пошаговое объяснение:

6,4 / 7,2 = 5,6 х / 0,9

6,4*0,9=5,6х*7,2

5,76=5,6х*7,2

5,6х=5,76:7,2

5,6х=0,8

х=0,8:5,6

х=8/10:56/10

х=8/10*10/56

х=1/7

Answer 2

To solve the proportion $\frac{6.4}{7.2} = \frac{5.6}{x}$ for $x$, you can cross-multiply and then solve for $x$:

$$\frac{6.4}{7.2} = \frac{5.6}{x}$$

Cross-multiply:

$$6.4x = 7.2 \cdot 5.6$$

Now, divide both sides by 6.4 to isolate $x$:

$$x = \frac{7.2 \cdot 5.6}{6.4}$$

Calculate the right side:

$$x = \frac{40.32}{6.4} = 6.3$$

So, the value of $x$ is approximately 6.3.