last winter the temperature was 4 degrees Fahrenheit at midnight. it dropped 5 degrees every hour for 5 hours and then rose 8 degrees every hour after that. wha

Question

last winter the temperature was 4 degrees Fahrenheit at midnight. it dropped 5 degrees every hour for 5 hours and then rose 8 degrees every hour after that. what was the temperature at moon

Answer 1

Let's see ---
      4° at midnight
     -1° at 1 a.m.
     -6° at 2 a.m.
     -11° at 3 a.m.
     -16° at 4 a.m.
     -21° at 5 a,m,      That completes 5 hours.
     -13° at 6 a.m.
      -5° at 7 a.m.
      +3° at 8 a.m.
       11°  at 9 a.m.
       19° at 10 a.m.
       27° at 11 a.m.
       35° at noon

     4 - 5(5) + (12-5)(8)  =   4 - 25 + 7(8)   =   35

Answer 2

4 - 5(5) + 5(8) = ?