1/3 because there are 3 people and only one correct answer
We know that time is distance over velocity, that is:
time = distance / velocity
t = d / v
Now from the given:
d / 460 + d / 500 = 4.8
Now we can find for d:
d = 4.8 / [1/460 + 1/500]
d = 1150 miles
So the time of each flight is:
flight = 1150 / 460 = 2.5 hours
<span>return flight = 1150 / 500 = 2.3 hours</span>
"help the number ... ?"
6x ≥ 8x-4
Then 4≥2x, or 2≥x, or x≤2.
%change=100(final-initial)/initial
%change=100(17.43-21)/21
%change= -17%
