Felix is baking a pie. He turns on the oven and waits for it to heat to 350 degrees before putting the pie in. Once the pie is done baking, he removes it and turns off the oven.

Question

You just found the oven was cooling down from 45 minutes to 95 minutes. How much time is that?
Oven cooling down
x
y
0
10
20
30
40
50
60
70
80
90
100
0
50
100
150
200
250
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350
Time (min)
Temperature (°F)
The oven started cooling down at 45 minutes.

The oven stopped cooling down at 95 minutes.

The oven was cooling down for
minutes.

Answer 1

To find out how long the oven was cooling down, you simply subtract the starting time from the ending time of the cooling period.

The start time of the cooling down is 45 minutes, and the end time is 95 minutes.

So, the cooling down time is:

\[ 95 , \text{minutes} - 45 , \text{minutes} = 50 , \text{minutes} \]

Therefore, the oven was cooling down for 50 minutes.