Pearson Edexcel International GCSE Mathematics B Paper 2. predictor questions. 100% approved pass rate.

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Answer ALL TWELVE questions. Write your answers in the spaces provided. You must write down all the stages in your working. 1 The following formula can be used to change a temperature f degrees Fah... renheit to a temperature c degrees Celsius. c = 5 32 9 ( ) f − (a) Make f the subject of c = 5 32 9 ( ) f − (3) Sean and Kate measure the temperature of a heated iron bar. Sean measures the temperature of the iron bar as x degrees Fahrenheit. Kate measures the temperature of the iron bar as y degrees Celsius. Given that x = 2y, (b) find the temperature, in degrees Fahrenheit, of the iron bar. 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.................................................................................................................................................................................................................................................. ..................................................................................................................................................................................................................................................*P66312A0332* Turn over 3 Question 1 continued .................................................................................................................................................................................................................................................. 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(Total for Question 1 is 5 marks)4 *P66312A0432* 2 The Earth is assumed to move around the Sun in a circular orbit of radius 1.5 × 108 km. Assuming that the Earth takes 365 days to complete one orbit of the Sun, calculate the average speed, in m/s to 3 significant figures, of the Earth as it orbits th [Show More]

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