Question

MATH HELPERS !!! word problems involving average rate of change Please answer correctly, I have this and one more afterwards, but can only post if this is correct

Answer 1

(a) 2.1°C per minute

(b) 1.9°C per minute

Explanation:

(a)

• O min = 222.6°C [Given]

• 10 min = 205.6°C [Given]

• Difference of time = 10 min

• Difference of Celcius = (222.6 - 205.6)°C = 21.0°C

• 
  `\bf (celcius)/(time) = (21.0)/(10) = 2.1°C\: per\: minute`

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(b)

• 30 min = 157.6°C [Given]

• 50 min = 119.6°C [Given]

• Difference of time = 20 min

• Difference of Celcius = (157.6 - 119.6)°C = 38.0°C

• 
  `\bf (celcius)/(time) = (38.0)/(20) = 1.9°C \:per \:minute`