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How to work out hair dye ratio - Functional Skills - BBC Bitesize
Mixing hair dye in a 1:1 ratio, working out one part of a ratio and simplifying a 1:1.5 ratio.
↗ https://www.bbc.co.uk/bitesize/topics/znyyb82/articles/zc29tv4Mixing hair dye in a 1:1 ratio, working out one part of a ratio and simplifying a 1:1.5 ratio.
↗ https://www.bbc.co.uk/bitesize/topics/znyyb82/articles/zc29tv4