The circumference of the blue circle is about: 20 cm
The circumference of the orange circle is about: 10 cm
The answer would be x= -6
If we want to calculate the time it takes to fill a water tank, we need the flow and volume of the tank.
The flow must be a data, but for the volume of the tank we need mathematics.
For example, if it is a cylinder, we need mathematics to know that the volume of the cylinder is:
V = pi * r ^ 2 * h
Hejejejwnwnwmwnwnwmmwnwwjwjmwmwkwkw
