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Dipen and Nisha are planning their wedding reception. Nisha says, “I want to invite 70 guests.” Dipen says, “If we invite one-fifth fewer guests, we will save more than £500” Is Dipen correct? (Taken from Nov 2014 AQA Unit 2)

Need to calculate two things in order to answer the question: 1) Total cost of Nisha's 70 guests. 2) Total cost of Dipen's 'one-fifth fewer' guests. For Nishen: Total cost = £40 * 70 minus the 5% reduction =...
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Answered by Alex N. • Maths tutor
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What's the difference between distance and displacement

Distance is a scalar, meaning it only has a magnitude. Displacement is a vector, meaning that it has both magnitude and direction. For instance, distance can state that I am "x" metres away from a ...
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Answered by Emma G. • Physics tutor
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Differentiate y=x*ln(x^3-5)

We can immediately see that more than differentiation rule will be needed here. The expression in question is the product of two smaller expressions, so the product rule may be useful. But to apply the produ...
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Answered by Nat N. • Maths tutor
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Why do you want to be a doctor rather than a nurse?

This is a commonly asked question in medical interviews, however several people struggle to come up with a strong answer.
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Answered by Molly S. • UCAT tutor
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How do you do specific word analysis?

Analysing quotes can be tricky, especially when you don't know where to begin. However, specific word analysis is the area that can get you the most marks and push into the upper grade boundaries an in exam....
KM
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