<PRE><B>Question 845364</B>
R*T=D for Rate, Time, Distance.


x = one way distance of the excursion;
48 minutes is {{{48/60=24/30=12/15=4/5}}} hour


______________speed__________time__________distance
upstream_______3_____________(___)_________x
downstream_____5_____________(___)_________x
TOTAL_________________________{{{4/5}}}


Use the equivalent rule equation T=D/R to fill the missing time expressions.


______________speed__________time__________distance
upstream_______3_____________{{{x/3}}}____________x
downstream_____5_____________{{{x/5}}}____________x
TOTAL_________________________{{{4/5}}}


The equation to solve for x should appear easily identified.

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