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21-10-2018
Mathematics

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At 3pm, the temperature outside was 5 1/5 degrees Fahrenheit. The temperature then fell steadily by 2 1/2 degrees per hour for the next four hours. What was the temperature at 7pm? Plz answer this and I will give you 100 points plz

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mathstudent55 mathstudent55

21-10-2018

Answer:

-4 4/5 deg F

Step-by-step explanation:

3 pm: 5 1/5 deg

2 1/2 deg per hour for 4 hours = 2 1/2 deg * 4 = 10 deg

7 pm: 5 1/5 deg - 10 deg = -4 4/5 deg

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