# Question #46a3f

##### 1 Answer

Mar 1, 2017

This problem can't be done without a starting temperature.

#### Explanation:

We're given a starting time and a temperature rate of change yet no starting temperature to determine the time.

If there is a starting temperature, let's say 11 degrees, it would be possible to subtract 4 degrees repeatedly until we get -1 degrees, the number of times subtracting would be the number of hours, which is what we're looking for.