Why do we use algebra?
Algebra is a very good way of generalising a particular scenario. For example, if you get a weekly allowance of £5 for leisure you can make an equation to calculate the amount of money you can save up in n weeks, n being a whole number which signifies the amount of weeks. The equation would be x=5n, x being the total money you would earn in 5 weeks (make sure you put the £ sign in your answer!). We can then use algebra to express more complex scenarios.
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Related Maths 11 Plus answers
All answers ▸An Island on a map is measured to be 4cm across. The scale of the map is 4cm to 500m. How long is the island in km?
I think of a number. I multiply it by 3 and then subtract 5. I get an answer of 16. What was the number I first thought of?
A circle has radius 6, what is its area?
Expand and Simplify: 2y(3x - 8) + x(2x + y)