One winter night the temperature fell 16 degrees between midnight and 5 A.M. By 9 A.M.the temperature had doubled from what it was at 5 A.M. By noon, it had risen another 9 degrees to 29 degrees. What was the temperature at midnight?
The temperature by midnight was 10 degrees because the number ? Was doubled and the the ? Number went up by nine and it was 29 so 29-9= 20 and 20 divided by 2 is 10 29-9=20 20/2=10
