A certain freezing process requires that room temperature be lowered from 40 degree c at the rate of 5 degree c every hour. what will be the room temperature 10 hours after the process begins?
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room temp decreases at the rate 5 ℃ /hour.
in 10 hours temp decreases will be 5•10=50 ℃.
temp of room will be 40℃ - 50℃ = -10℃
so the room temp will be -10℃
is ot correct.
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