Solving math problems: The following table records the data of time and temperature in an experiment.
73℃ (according to the conditions, the temperature changes by 3℃ per minute and 70℃ in 20 minutes, so 2 1 minute is 73℃)34℃ is between 25℃ and 40℃, so the time is between 5- 10, and the time is increased by 5-15 =/each time. 5 \ 15=8