10. Tira noticed that every 30 sec, the temperature of a chemical reaction in her lab was decreasing by the same number of degrees. Initially the temperature was 28 C and 5 min later, -12 C. In a second experiment, Tira noticed that the temperature of the chemical reaction was initially -57.C and was decreasing by 3'C every minute. If she started the two experiments at the same time, when were the temperatures of the reactions the same? What was the temperature