How long will it take a dish to bake at 275 degrees that should be baked at 350 degrees for 1hr 30 minutes?

To calculate the adjusted baking time for baking a dish at a lower temperature of 275 degrees Fahrenheit instead of the recommended 350 degrees Fahrenheit, you can use the formula: new baking time = (original baking time / original temperature) x new temperature. In this case, the new baking time would be (1.5 hours / 350) x 275 = 1.21 hours, which is approximately 1 hour and 13 minutes. So, the dish should be baked at 275 degrees Fahrenheit for about 1 hour and 13 minutes.