321.5
643 divided by 2 is 321.5, which is 32150%
40.1875
214.3333
643
6430
No: 643 divided by 6 is 107 with remainder one.
26.7917
To solve the equation (10x^2 - 643 = 6x^2), first rearrange it to (10x^2 - 6x^2 - 643 = 0), simplifying to (4x^2 - 643 = 0). Adding 643 to both sides gives (4x^2 = 643). Dividing by 4 results in (x^2 = \frac{643}{4}), leading to (x = \pm\sqrt{\frac{643}{4}} = \pm\frac{\sqrt{643}}{2}). Thus, the solutions are (x = \frac{\sqrt{643}}{2}) and (x = -\frac{\sqrt{643}}{2}).
0.0047
91.8571
107.1667
2572/2=1286 1286/2=643 2*2*643