Question 955088
The two different rates, each for a different distance, will form two different time expressions, to be summed.


{{{10/r+20/(r+5)}}} for total time.


{{{(10(r+5)+20r)/(r(r+5))}}}


{{{(10r+50+20r)/(r^2+5r)}}}



{{{highlight((30r+50)/(r^2+5r))}}}, if one rational expression form.