Question

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Answer 1

2.55 is the answer!

Explanation:

Depth = 1200 metres --> x = 1200 --> T = 4500 / 1200 = 3.75°C

Depth = 3750 metres --> x = 3750 --> T = 4500 / 3750 = 1.2 °C

The difference of the temperatures is 3.75°C - 1.2°C = 2.55°C

hope it helps!