Top answers

How do I work out probability when a random choice is repeated?

Before you try to work out the probability, establish the following answers from the question and jot them down. How many items are there in total? After something is chosen, is it put back before the next c...
NC
Answered by Naomi C. • Maths tutor
4220 Views

Simplify 2a+6b-a+2b+3a

Look for the corresponding letters to each number. So, as an example those with a. remember that the + or - before it tells us whether it is to be added or subtracted There are 2a-a+3a so that = 4a With b th...
TH
Answered by Tom H. • Maths tutor
5293 Views

Factorise fully 8y + 4y^2

This question relies on knowledge of algebraic expressions and highest common factors. What is the highest common factor which goes into the expressions 8y and 4y^2. The answer is 4y. This is then taken on t...
AT
Answered by Abhinav T. • Maths tutor
8593 Views

Starting with this extract, how does Dickens present Scrooge as an outsider to society?

Dickens presents Scrooge as an outsider in this extract by the way he is described. He uses pathetic fallacy in the first paragraph to represent how Scrooge is ‘colder’ than anything weather can throw at him...
KH
74076 Views

I can't figure out this question to do with VAT. VAT is charged at 20%. A TV is for sale for £650 inc. VAT in Good Electronics and the same TV is for sale £495 exc. VAT in Wright's Electricals, where is it cheaper?

I can't figure out this question to do with VAT. VAT is charged at 20%. A TV is for sale for £650 inc. VAT in Good Electronics and the same TV is for sale £495 exc. VAT in Wright's Electricals, where is it c...
WH
Answered by William H. • Maths tutor
6000 Views