ANSWER:
24 minutes
40% of 1 hour is equivalent to 24 minutes.
STEP-BY-STEP EXPLANATION:
1 hour = 60 minutes
If:
100% = 60 minutes
Then:
100% ÷ 2.5 = 60 minutes ÷ 2.5
40% = 24 minutes
THEREFORE:
40% of 1 hour is equivalent to 24 minutes.
Substitute 
, so that 
. Then the ODE is equivalent to
which is separable as
Split the left side into partial fractions,
so that integrating both sides is trivial and we get
Given the initial condition 
, we find
so that the ODE has the particular solution,
Answer:
B:0.2(48)
Step-by-step explanation:
Of means multiply
20% of 48
Changing to decimal form
.20 * 48
No. Mike wrote the ratio as the amount of change to the new amount. He should have used the ratio of the amount of change to the original amount, which is 55
55/275
, or 20%.
