Question

I don't know how to calculate. Pls help me!
thanks ​

Answer 1

Step-by-step explanation:

Let the unknown number is x. So, we can write the equation like this.

$? \div \frac{1}{2} = \frac{1}{5} \times ?$

$x \div \frac{1}{2} = \frac{1}{5} \times x$

$x \times \frac{2}{1} = \frac{x}{5}$

$2x = \frac{x}{5}$

$\:$

—Now, find the value of x.

$2x = \frac{x}{5}$

$5 \times2x = x$

$10x = x$

$10x - x = 0$

$9x = 0$

$x = \frac{0}{9}$

$x = 0$ IS THE ANSWER

Answer 2

Step-by-step explanation:

$□ \div \frac{1}{2} = \frac{1}{5} \times □$

$x \div \frac{1}{2} = \frac{1}{5} \times x$

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

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

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

$\frac{x}{2} = \frac{x}{5}$

$10 \times \frac{x}{2} = 10 \times \frac{x}{5}$

$5x = 2x$

$5x - 2x = 2x - 2x$

$3x = 0$

$\frac{3x}{3} = \frac{0}{3}$

$x = 0$

The answer is 0