A rule to change from temperature measured in degrees Celsius (∘C^{\circ}\text{C}∘C) to degrees Fahrenheit (∘F^{\circ}\text{F}∘F) is:
Multiply the temperature in degrees Celsius by 1.8 then add 32
The temperature in London is 15∘C15^{\circ}\text{C}15∘C.
Work out the temperature, in London, in Fahrenheit (∘F^{\circ}\text{F}∘F)
The temperature in New York is 59∘F59^{\circ}\text{F}59∘F
Work out 59−3259 - 3259−32
Hence work out the temperature, in New York, in Celsius (∘C{}^{\circ}\text{C}∘C)
84 exam-style questions on AQA GCSE Maths Function Machines. Each one has a worked solution and a mark scheme showing where the marks go.