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To answer this question, we first need to work out the factors of 21. These are the whole numbers which multiply to make 21. We know that 1 multiplies with 21 to make 21, so they are both factors. 2 is no...

To begin, we need to do the division 106/6. We know that 6 does not go into 1, so we can carry the one and see how many 6s go into 10.We can see that 6 goes into 10 once, with a remainder of 4, so we can ...

QuestionThe average temperature in May is 18 ºC.The average temperature in November is a third of the average temperature in May.The average temperature in September is twice the average temperature in No...

Adding decimal numbers is done exactly the same as normal numbers: the column method.When you have 2 decimal numbers to add together the most important thing is to line up the decimal points (dots) so tha...

y=3x (1)

2x+y = 5 (2)

Here we are being asked to find what the value of x and y is. It is asking us to substitute either x or y into the equation to help us find our solutio...