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Here is a question from the 2015 edexcel GCSE paper that was considered particulary challenging.
There are n sweets in a bag. 6 of the sweets are orange. The rest of the sweets a...
To find the gradient of a straight line we can use the change in the X and Y directions.
The gradient (Slope) of a straight line is defined as :
Grad = (Change in Y) / (Cha...
The full price (100%) is £4The sale price is 30% less. So the sale price is 70% of the original price.£4 * 0.7 = £2.80
There are different types of averages: the MEAN, the MEDIAN and the MODE. The mean average is where we add all the numbers up together and divide by the amount of numbers provided. So for this case, we...
Sin(x), Cos(x) and Tan(x) are very useful functions and can be used to solve algerbraic problems where the aim is to find the size of an angle or a size.
Sin(x) = Opposite/Hypotenuse
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