Question

A certain type of liquid freezes at -16°C. The frozen liquid is heated by 5°C every 30 minutes. Find the temperature of the liquid after two hours of heating?

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Answer 1

Answer:

4°C

Step-by-step explanation:

1 hour = 60 minutes

2 hours = 120 minutes

120 ÷ 30 = 4

5°C x 4 = 20°

-16°C + 20°C = 4°C