Answer:
They are adding up by 12
Step-by-step explanation:
They start at 15, then first add 3, then 6, and then 6 again.
ELEVEN IS THE ANSWER.
DEAL WITH IT
Temperature at noon: Tn=-2.9 f
Rate: r=+1.3 f/h
Total decreased: d=-3.7 f
Temperature at midnight: Tm=?
Tm=Tn+r(6 p.m.-12 m)+d
Tm=-2.9 f+(1.3 f/h)(18 h-12 h)+(-3.7 f)
Tm=-2.9 f+(1.3 f/h)(6 h)-3.7 f
Tm=-2.9 f+7.8 f-3.7 f
Tm=1.2 f
Answer: T<span>he temperature at midnight was 1.2 f</span>
Just do for example on number 38 you will do 6.8/1000= 0.0068 which is the answer