MARY:Right. 200g of self-raising flour, 175g of butter, 2 eggs. 225g of Caster sugar, 40g of cocoa powder, one teaspoon of vanilla extract and the cream, 150ml. MARY:'If two quantities arein direct ...

Explore how to work out whether two variables are directly proportional with BBC Bitesize Maths. For students between the ages of 11 and 14. Work out whether quantities are inversely proportional, and ...