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​Q19: Answers – Paper 1 – June 2017
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Question
19)
a) Use    8 km/h = 5 mph     to convert 96 km/h to mph
[2 marks]​

b) 
x km/h = y mph
Use     8 km/h = 5 mph     to write a formula for y in terms of x.
[2 marks]​​