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06-11-2020
Mathematics

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The temperature of a cup of coffee changed by -54 Fahrenheit over 22 and 1/2 minutes. What was the change in temperature each minute?

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mhanifa mhanifa

06-11-2020

Answer:

-2 2/5 F per minute

Step-by-step explanation:

Temperature change:

- 54 F over 22 1/2 min

Change in 1 minute:

-54 / 22 1/2 =
-54 / (45/2) =
-54*2 / 45 =
-108 / 45 =
-2 18 / 45 =
-2 2/5 F/min

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