Answer:
11
Step-by-step explanation:
Step-by-step explanation:
the answer is in the picture
Answer:
21.68 minutes ≈ 21.7 minutes
Step-by-step explanation:
Given:

Initial temperature
T = 100°C
Final temperature = 60°C
Temperature after (t = 3 minutes) = 90°C
Now,
using the given equation

at T = 90°C and t = 3 minutes


or

taking the natural log both sides, we get
3k = 
or
3k = -0.2876
or
k = -0.09589
Therefore,
substituting k in 1 for time at temperature, T = 65°C

or

or

or

taking the natural log both the sides, we get
( -0.09589)t = ln(0.125)
or
( -0.09589)t = -2.0794
or
t = 21.68 minutes ≈ 21.7 minutes
Answer:
Step-by-step explanation:
3v + u + 66 = 360
<em>Subtract 66 from 366</em>
3v + u = 294
<em>check images</em>
<em>for more steps</em>
$32 with 5% sales tax increases the price to $33.60. $55 with 5% sales tax added would equal a total cost of $57.75. The answer is $57.75.