Question

The temperature of one furnace is 1,400°C and cools at a rate of 25°C per minute. The temperature of another furnace is 1,200°C and is heated at a rate of 15°C per minute. After how many minutes will the furnaces be the same temperature?

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Answer 1

Answer:

5 minutes

1400-25x =1200+15x

x= 5

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