abramdent
17.11.2019 •
Mathematics
The temperature of the furnace is 1200 and cool at a rate of 15 per minute the temperature of another furnace is 900 and is heat at a rate of 5 per minutes after how many minutes will the furnace be at the same temperature
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Ответ:
After 15 minutes, the temperature of both the furnaces will be same.
Step-by-step explanation:
Let be the minutes when the temperature of both becomes same.
Now, as per question:
Temperature of the furnace after minutes that is cooling at the rate of 15 degree per minute is given as:
Temperature of the furnace after minutes that is heating at the rate of 5 degree per minute is given as:
Now, equating both the temperatures, we get
Therefore, after 15 minutes, the temperature of both the furnaces will be same.
Ответ:
First find the gradient of L.
-6÷3=-2
gradients of perpendicular lines multiply together to give -1.
(-2)×1/2=-1
m=1/2 or 0.5
y=0.5x-1.5