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Megan buys a car for £7,700 plus 20% VAT. She pays a deposit for the car and then pays the rest in 12 equal instalments of £642.50. How much did Megan pay as a deposit?

7700 x 1.2 = 9240 (total cost of car)12 x 642.5 = 7710 (total cost of instalments)9240 - 7710 = 1530Answer = £1,530
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Answered by Charles D. • Maths tutor
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11.25g of hydrated copper (II) sulfate is heated to constant mass. The new mass is found to be 7.19g. What is the formula of the hydrated copper (II) sulfate?

Hydrated Copper (II) sulfate The hydrated term means that this compound contains water of crystallisationWater of crystallisation means that there are chemically bonded water molecules withing the compound t...
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Answered by Una M. • Chemistry tutor
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How do I know when to use the imparfait or the passé composé when talking in the past tense?

The passé composé, compared to the imparfait, is used when talking about finished actions in the past. The imperfect, therefore, is used when we want to talk about past actions that had no obvious completion...
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Answered by Michael O. • French tutor
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Describe, using a relevant study, schema theory.

Schema theory suggests that all knowledge is organised into units based on previous experiences and factors such as childhood experiences , repetitive exposure and reinforcement. Bartlett's 1932 study invest...
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Answered by Lydia H. • Psychology tutor
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What are primary and secondary effects of a tectonic hazard and why might people continue to live in a hazardous area?

Tectonic hazards are those caused by the movement of tectonic plates on the earth's surface, such as earthquakes and volcanoes. Primary effects occur as a direct result of the movement; for example, ground s...
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Answered by Sarah L. • Geography tutor
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