Question

X • 2/5 = 4 what is X standing for?

Answer 1

Answer: X stands for 10

Explanation:

If we subsitute X for 10, and convert 2/5 to 0.4 we get, 10x0.4 = 4

To convert a fraction to a decimal, you simply divide the numerator by the denominator.

Answer 2

`\sf (2x)/(5) = 4 \\ \sf \: 2x = 4 * 5 \\ \sf \: 2x = 20 \\ \sf \therefore \: x = 10`