The formula for distance is equal to:
d = v * t
where d is distance, v is velocity or speed, and t is time
Â
Since the distance travelled by the two airplane is similar, therefore we can create the initial equation:
Â
v1 * t1 = v2 * t2
Â
We know that v1 = 496, and v2 = 558 so:
Â
496 t1 = 558 t2
or
x = 558 t2 / 496
Â
We also know that airplane 1 travelled 30 minutes (0.5 hours) earlier than airplane 2, therefore:
Â
x = t2 + 0.5
Â
Hence,
496 (t2 + 0.5) = 558 t2
496 t2 + 248 = 558 t2
t2 = 4 hours
Â
x = t2 + 0.5 = 4 + 0.5
x = 4.5 hours
Â
Â
So the equation is:
x = 558 t2 / 496
Â
And the first plane travelled:
x = 4.5 hours