Value + value = 14 dollars
0.65x + 10-0.40x = 14
0.25x = 4
x = 16
25-x =9
Answer:
See Explanation
Step-by-step explanation:
For an object at temperature T and supposing that the ambient temperature is Ta then we can write the differential equation that typifies the Newton law of cooling as follows;
dT/dt=-k(T-Tₐ)
So
dT/dt = 2 degrees Celsius per minute
T = 70 degrees Celsius
Ta = 25 degrees Celsius
2 = -k(70 - 25)
-k = 2/(70 - 25)
k = - 0.044
Hence we can write;
dT/dt=-(- 0.044)(95-25)
dT/dt= 3 degrees Celsius per minute
Answer:
Step-by-step explanation:
I'm not sure if the right side is 
or 
, so I'll provide an answer for both:
Answer:
4.
Once 
is opposite to 
, they are the same. It is the same for 
, equals to 40º.
m∠y = 40º
The ∠x and 40º are supplementary, therefore ∠x = 140º.
∠z = 140º
m∠x = 140º
m∠y = 40º
m∠z = 140º
5.
Considering the explanation from the question 4:
m∠x = 50º
m∠y = 130º
m∠z = 50º
