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 ▸The average age of a group of 6 people is 21. One more person joins the group and the average is now 25. How old is the new member of the group?
If 3x =15 and x+y =7 what is (3y)^2?
At the performances last month, a total of seven-hundred and forty-four thousand, eight hundred and one drinks were sold at the theatre's restaurant bar. The manager wants to know how many drinks were sold, rounded to the nearest thousand drinks.
Add the brackets to make the sum correct for the following equation: 12-11+2-1= 0