Question

In Bluepoint, the average low temperature for January was 40 °F. The average low in February was 27% lower. What was the average low in February?

Answer 1

The average low temperature for January was 40 °F - 100%.

The average low in February was x °F - 27% lower, that is 100%-27%=73%.

Write a proportion:

$\dfrac{40}{x}=\dfrac{100}{73},\\ \\x=\dfrac{73\cdot 40}{100},\\\\x=29.2$

Answer: the average low in February was 29.2 °F.