Question

A cold wave hit Chicago when the temperature hits 62°F during the cold wave the temperature dropped 2° every hour how many hours was it before the temperature was below 40°F

Answer 1

For this problem, an important thing to note is how the question says that 'the temperature dropped', meaning that it went down.

This means that the 2 degrees is actually negative.

Then you multiply the change in degrees by hours past:

(−2)×6=−12

Final Answer:

−12∘F

Answer 2

If you are looking for an inequality, the answer is 62-2x<40