Question 840861
RT=D rate, time, distance


______________speed___________time____________distance
Going_________r-w_____________32/60___________80
Back__________r+w_____________1/3_____________80


The time going, is {{{16/30=8/16}}} hours.


Two equations for the system are
{{{(r-w)(8/15)=80}}}
and
{{{(r+w)(1/3)=80}}}
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Two equations in the two unknowns r and w.  Solve for them.
Note that the system equivalently is
{{{r-w=150}}}
and
{{{r+w=240}}}
Easily fit for Elimination Method.