Answer:
   76.25°
Step-by-step explanation:
The solution to the differential equation is an exponential curve with a horizontal asymptote at Tm. It passes through (0, 145) and (30, 95), so the equation can be written as ...
   T = 80 +65((95-65)/(145-65))^(t/30)
   T = 80 +65(3/8)^(t/30)
That is, the temperature difference is reduced to 3/8 of its original value in 30 minutes.
Since the coffee in cup B cools twice as fast, it will cool to the same temperature (95°) in 15 minutes. In the next 15 minutes, the temperature difference will be reduced to (3/8)^2 of the original 80°, so will be 11.25°. That is, the temperature of cup B will be ...
   11.25° +65° = 76.25°
after 30 minutes.
 
        
             
        
        
        
        
Answer:
<u>yes your formula is correct </u>
Step-by-step explanation:
 
        
             
        
        
        
Answer: 28.4375 is the correct answer Explanation: because in one month they grow 3.25 so in 8.75 months they grow 28.4375.