Answer: THE LAST OPTION
Step-by-step explanation:
1. You have the following equation given in the problem:
2. If you multiply both sides of the equation shown above by 6, you obtain the following:
3. When you simplify the equation, you obtain the following equivalent equation:
Step-by-step answer:
Answer to problems of this kind is the reciprocal of the harmonic mean of the time required.
We need to find the average of the speeds, not the average of the time.
The respective speeds are 1/3 and 1/4.
The average of the speeds is therefore (1/3+1/4)/2 = 7/24 (harmonic mean of the time taken).
The time required is therefore the reciprocal of the unit speed,
T = 1/(7/24) = 24/7 = 3 3/7 minutes, or approximately 3.43 minutes.
1.20 + 0.34 = 1.54
That is the answer.
Comparision of volume of sphere and cube=0.98820059
coparision of surface area of sphere and cone=0.807582012
Answer:
a
Step-by-step explanation:
