The mean temperature for the past ten days was 22° celsius. If the sum of the temperatures for the first nine days was 200, what was the temperature on day 10?.

When amy exercises in her fitness center for 1 hr she burns a total of 475 calories. if she burns 9 calories a minute jogging on the treadmill and then burns 6.5 calories a minute pedaling on the stationary bicycle how many minutes of the hour does she spend exercising on the bicycle?