Question 623235
Maria drove to a business appointment at 40 mph. Her average speed on the return trip in the afternoon was 30 mph. The return trip took1/3 hr longer because of traffic. How far did she travel to the appointment?
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let x=travel time to appointment
x+1/3=travel time on return trip
distance=travel time*speed
..
40x=30(x+1/3)
40x=30x+10
10x=10
x=1 hr
distance=40*1=40 mi (distance Marie traveled to appointment)