<PRE><B>Question 720718</B>
Jane leaves her house and drives in a straight line at a speed of 38 mph. Her speed on the return trip is 48 mph. The trip back home takes 15 minutes less than the outbound trip. What was Jane&#39;s total travel time in hours? Assume both trips are in a straight line. Give your answer to 2 decimal places.
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15 mins = 1/4 hour
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t = time at 38 mi/hr in hours
d = 38t
d = 48*(t- 1/4)
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38t = 48t - 12
-10t = -12
t = 1.2 hours (at 38 mi/hr)
Total time = t + (t - 1/4)
= 2.15 hours
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