While we're here, can someone solve this math problem for me?
A frozen pizza instructs that the oven should be preheated to 425 degrees F, and then cooked for 23 minutes. The oven takes 9 minutes to preheat from 75 to 425 degrees. If I start the oven and immediately put in the pizza so that I won't have to make an extra trip after preheating is done, for how long should I set the timer instead?
My calculations determined that I should halve the preheat time and add that to the total cook time, which would end up being 27.5 minutes. But then my food turned out undercooked.