6 metres cost 3.00. what is the cost of 1 metre?
3/6 = 0.5 for 1 metre
6 metres - 3.001 metre - x\(6 \cdot x = 1 \cdot 3 \\ 6x=3 \\ x=\frac{3}{6}=\frac{1}{2}=0.5\)1 metre costs 0.5.
