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A ratio of 1:4 means there are 5 parts to the mixture.
2 litres of drink divided into 5 parts means there are 400 ml per part (2000ml/5 parts).
As Fruit Juice has 1 part, Callum would need 400...

   Elasticity is just a technical term for "Sensitivity" so Price Elasticity of Demand (PED) simply measures how sensetive Demand is to a change in price. As demand changes can be measured in an...

Hydrostatic pressure originates from the weight of the liquid. At a certain point in the liquid, the hydrostatic pressure is going to be equal to the weight of the liquid above the examined point.  So in ...

One of the most important things is to remember to have a clear structure of an introduction, main body and conclusion. You also need to make sure you are consistently referring and relating back to the q...

Urban decline is the deterioration of previously functioning parts of the city, an example is Hulme, an inner city area of Manchester. Urban decline is typically characterised by worsening social factors ...