Question

The temperature rises 5 degrees every hour the heater is on. The temperature started at 40 degrees before the heater was on. How many hours would it take for the temperature to reach 85 degrees?

Answer 1

9 hours

Explanation:

All we need to do is subtract 40 from 85, giving us 45.

Then we divded 45 by 5 (degrees an hour) to get 9.

So 9 hours is our answer.