Question

The temperature in a hot tub is 103° and the room temperature is 75°. The water cools to 90° in 10 minutes. What is the water temperature after 20 minutes? (Round your answer to one decimal place.) After how many minutes will the temperature be 80°? (Round your answer to one decimal place.)

Answer 1

Answer: 77°

Step-by-step explanation:

103° - 90°= 13°, 13° = 10 min

13°+13°= 26°

103°-26°= 77°