Question

The temperature of a substance decreases at the rate of 2 degree Celsius per 10 minute. The temperature of the substance at 5 0, clock was 10 degree Celsius. At what time will the temperature of the substance be 4 degree Celsius below zero. Solve this question

Answer 1

gn that ,

Temp is decreased at the rate of two degrees per ten minutes

20x=50/4y

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