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Mathematics, 05.04.2020 08:49 tmoneytj28

At the moment a hot iron rod is plunged into freezing water, the difference between the rod's and the water's temperatures is 100\degree100°100, degree Celsius. This causes the iron to cool and the temperature difference drops by 60\%60%60, percent every second.
Which graph shows the temperature difference yyy (degrees Celsius) after xxx seconds?

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