Question

Rhoda’s conventional oven heats up at about 23 degrees per minute. After preheating the oven to 150 degrees, Rhoda sets the temperature to 350 degrees to bake cupcakes. What is the time it will take for the oven to heat up from 150 degrees to 350 degrees?

Answer 1

The change in temperature from 150° to 350° is 200°. At the rate of 23°/min, it will take ...

... (200°)/(23°/min) = (200/23) min ≈ 8.70 min ≈ 8 min 42 sec