2. You are trying to decide how to most efficiently use your oven. You do not want the oven running at a high temperature when you are not baking, but you also do not want to waste a lot of time waiting for the oven to reach the desired baking temperature.
The instruction manual on the industrial oven suggests the oven temperature will increase by 45 degrees Fahrenheit per minute. When the oven is initially turned on, the temperature is 70 degrees Fahrenheit. What will the temperature of the oven be after 7 minutes? Write an expression and explain how you arrived at your answer.
(7 * 45) + 70 = ?
To determine the temperature of the oven after 7 minutes, we need to take into account that the oven temperature increases by 45 degrees Fahrenheit per minute.
Given that the initial temperature of the oven is 70 degrees Fahrenheit, we can calculate the temperature after 7 minutes using the following expression:
Temperature after 7 minutes = Initial temperature + (rate of increase × number of minutes)
Plugging in the values:
Temperature after 7 minutes = 70 + (45 × 7)
Now we can solve the expression:
Temperature after 7 minutes = 70 + 315
Temperature after 7 minutes = 385 degrees Fahrenheit
Therefore, the temperature of the oven after 7 minutes will be 385 degrees Fahrenheit.