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Solve these simultaneous equations. 2x + y = 18 x - y = 6

With simultaneous equations there is more than one unknown. First we’ll get one unknown on its own so we rearrange the bottom equation to get x on its own. By adding y to each side of the equation this leave...
LS
Answered by Lizzie S. • Maths tutor
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Distinguish between the concepts of income elasticity of demand (YED) and cross price elasticity of demand (XED)

In economics, elasticities are an indicator of the responsiveness of demand after a change in price or income . Income elasticity of demand is the relative change in demand of one good or service following a...
MC
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What are the different types of long-term memory?

As you probably know, long-term memory (LTM) is one type of memory, however within LTM there are different types. These can be divided into; episodic, semantic and procedural LTM. The differences between the...
JC
2492 Views

How do I improve my UKCAT score?

You can improve your UKCAT score in many ways, in my opinion the best way to tackle the UKCAT is one section at a time. Firstly, the UKCAT section. Generally you will improve in this section the more you rea...
JC
Answered by Jessica C. • UCAT tutor
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‘Richard Nixon proved himself to be a master of statesmanship in foreign affairs’ Assess the validity of this view.

As Vice President (1953-1961) and subsequently as President (1969-1974), Richard Nixon consistently attempted to portray himself as a highly capable statesman and master of foreign affairs. This effort has b...
JR
Answered by James R. • History tutor
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