Question 931513
Plane A, 5000+40.5x
Plane B, 4467+50.75x
x is number of seconds of time.


When altitudes equal?
{{{5000+40.5x=4467+50.75x}}}
{{{5000-4467=10.25x}}}
{{{x=53.3}}} seconds.
Use either formula for altitude of a plane to find what the altitude would be.