Question

Margaret drove to a business appointment at 70 mph. Her average speed on the return trip was 60 mph. The return trip took 1/3 hr longer because of heavy traffic. How far did she travel to the appointment?​

Answer 1

70t = 60t + 10

10t = 10

t = 1 hour

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1 hour 70 mi/hr = 70 miles

Explanation: