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What is the difference between a valid argument and a sound argument?

First, let's be clear what an argument is. An argument is a set of claims intended to establish the truth of another claim. The set of claims are the premises of the argument, and they are intended to establ...
TD
15364 Views

Solve the simultaneous equations A and B: [A] 2x + y = 18 [B] x - y = 6

[A] 2x + y = 18 [B] x - y = 6Rearrange [A] to make y the subject 2x + y = 18minus 2x| y = 18 - 2xReplace the value y in [B] with the rearranged [A] x - (18 - 2x) = 6expand brackets| x - 18 + 2x = 6 simplify|...
NY
Answered by Nichol Y. • Maths tutor
3951 Views

Jon and Nik share money in the ratio 5 : 2 Jon gets £150 more than Nik. How much money do they share altogether?

If we forget about the £150 more for a second then we can think of some very basic scenarios where the 5 : 2 ratio is satisfied. For example, Jon has £5 Nik has £2 or Jon has £10 Nik has £4 and so on. From t...
WS
Answered by William S. • Maths tutor
7872 Views

How do you effectively evaluate research?

Thinking of the acronym GRENADE acts as a useful guideline to include higher level evaluation, rather than the basic methodological design criticisms. It helps provide structure to your evaluation and most a...
SF
Answered by Steff F. • Psychology tutor
5305 Views

How can i make a good first impression with my personal statement?

Many people try to open their statement with a witty line or a pun. I would not recommend doing this, it just makes it look like you have googled 'funny history personal statement introductions'. The readers...
OJ
2438 Views