Equations part two
Equations can be used to describe situations from life. For example, imagine you won £500 in a mathematics competition. Imagine you decided to spend all of the money on a short break. You estimated that you would need £40 a day spending money, the hotel costs £60 a night and travel to and from your destination costs £75. How long could you go away for on your winnings?
You can work this out using an equation.
Let 
Let’s write an equation that calculates the value of
Let’s write the equation in words first and then use numbers and symbols
Total money equals travel cost plus number of nights \times spending money plus number of nights \times hotel cost
Now let’s substitute symbols for the words
You can afford to go away for 4 nights with some money to spare.
