A certain freezing process requires that the temperature be lowered from 300 C at the rate of 30 C every hour. What will be temperature after 8 hours?- grade 7
Answers
Answer:
Given that
Let us assume that the lowered temperature as negative,
Initial temperature = 40oC
Change in temperature per hour = -5oC
Change in temperature after 10 hours = (-5) × 10 = -50oC
∴The final room temperature after 10 hours of freezing process = 40oC + (-50oC)
= -10oC
The room temperature 10 hours after the process begins= -10oC
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Answer:
Let us assume that the lowered temperature as negative,
Let us assume that the lowered temperature as negative,Initial temperature = 40oC
Let us assume that the lowered temperature as negative,Initial temperature = 40oCChange in temperature per hour = -5oC
Let us assume that the lowered temperature as negative,Initial temperature = 40oCChange in temperature per hour = -5oCChange in temperature after 10 hours = (-5) × 10 = -50oC
Let us assume that the lowered temperature as negative,Initial temperature = 40oCChange in temperature per hour = -5oCChange in temperature after 10 hours = (-5) × 10 = -50oC∴The final room temperature after 10 hours of freezing process = 40oC + (-50oC)
Let us assume that the lowered temperature as negative,Initial temperature = 40oCChange in temperature per hour = -5oCChange in temperature after 10 hours = (-5) × 10 = -50oC∴The final room temperature after 10 hours of freezing process = 40oC + (-50oC)= -10oC
Let us assume that the lowered temperature as negative,Initial temperature = 40oCChange in temperature per hour = -5oCChange in temperature after 10 hours = (-5) × 10 = -50oC∴The final room temperature after 10 hours of freezing process = 40oC + (-50oC)= -10oCThe room temperature 10 hours after the process begins= -10oC