Question 947741
d, the distance between points X and Y
RT=D, basic uniform rates travel rule

Time will be used here in hours.



___________________speed______________time_______________distance
GOING______________480___________________t________________d
RETURN_____________440_________________t+35/60____________d


d is for both going and returning, so expressions for RT are equal.
{{{highlight(480t=440(t+7/12))}}}
Solve for t.
From there, you have {{{d=480*t}}}.