Simplify the expression and combine like terms. 2 (x+6) + 3x + 4
2 answers:
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Answer:
The refrigerator was at around 13 ∘C
Step-by-step explanation:
Newton's Law of Cooling:
The rate of change of a body temperature (amount of heat loss/time of loss) is directly proportional to the difference between its own temperature and the surroundings.
T ⇒ temperature
t ⇒ time
Tenv ⇒refrigerator temperature
⇒ rate of change of he temperature
-h ⇒ constant of proportionality (negative because the temperature is decreasing inside the refrigerator)
We have 3 points:
time (minutes) - Temperature (∘ C)
0 (when the pan was put in the refrigerator) - 46
15 (after 15 minutes) - 27
30 (15 minutes after the first 15 minutes) - 19
= -h (27 - Tenv)
= -h (19 - Tenv)
Now we have a system of two equations and two variables
The refrigerator was at around 13 ∘C
Hello,
The graph below is the graph you may have forgotten to upload. This will help me understand the question better and to give you a great answer.
A: " 1 lb of apples will cost Zack $2.50. "
___________________________________________ C: " 4 lb of apples will cost Zack $10. "
Hope this helps
-Jurgen :D
The graph below is the graph you may have forgotten to upload. This will help me understand the question better and to give you a great answer.
A: " 1 lb of apples will cost Zack $2.50. "
___________________________________________ C: " 4 lb of apples will cost Zack $10. "
Hope this helps
-Jurgen :D