exam Maths Puzzle Numerical Ability

A hot cup of coffee cools exponentially with time as it is forgotten about while reading a paper at the local coffee shop. Its change in temperature,T,measured in degrees Celcius,

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exam Other Question

The sum of two consecutive even integers is 2 more than twice the smaller integer. I tried to set it up as follows: x = first integer, x+2 = second
x+x+2=2x=+2 but then it solves to 0=0 The linear equation that relates �C to �F is as follows:

�F = 1.8 �C + 32.0

The following data was calculated in this way:

Temperature �F Miles east from starting point