In the morning, May drove to an appointment at 50 mph. Her average speed on the return trip in the afternoon w

Question

In the morning, May drove to an appointment at 50 mph. Her average speed on the return trip in the afternoon was 40 mph. The return trip took 1/2 hour longer. How far did she travel to the appointment?

Answer 1

using v*t=d
50*t=40*(t+.5)
solving the algebra
10*t=20
t=2 hours
50*2 =100 miles
40*2.5=100 miles

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