The temperature of a substence decreases at the rate of the 2selsiyas minute the temperature of the substence at 5 o'clock was 10 minute at what time will the temperature of the subsent be 4selsiyas cbelow zero
Answers
Answered by
1
Step-by-step explanation:
The temperature of substance is 10 degree Celsius at 5 o' clock
The time needs to be calculated when the temperature of substance is -4 degree celsius (as it is mentioned that "4 degree Celsius below zero")
Therefore the drop in the temperature is 10 - (-4)
= 10 + 4
= 14 degrees
Let the total time required for this drop be x
For every 10 mins, there is a drop of 2 degree Celsius.
Therefore x/10 = 14/2
x = 14*10/2
x = 140/2
x = 70
So 70 minutes will be required for the substance to reach -4 degree Celsius.
70 minutes corresponds to 1 hour 10 minutes
Hence the time at which the substance would reach -4 degree Celsius is 5 o' clock +1hr 10 mins
= 6 hrs 10 mins
Please mark me as the brainliest so that my heart can rest in peace
Similar questions