Question 48859
DISTANCE=RATE*TIME & T=D/R OR  2=D/R OR D=2R GOING TO PORTLAND & (8-2-3)=D/(R-20) OR 3=D/(R-20) OR D=3R-60 RETURNING FROM PORTLAND THUS 2R=3R-60 OR R=60 MPH 
ON THE TRIP TO PORTLAND