Kitchen flooring is sold at £8 per 1 metre length what is the cost for 80cm
In this situation, I'd use a proportion: \(\frac{8}{100}=\frac{x}{80}\)
Multiply diagonally: \(100x=640\)
Divide by 100 on both sides: \(x=6.4\)
Therefore, 80cm of kitchen flooring would cost £6.40.