SOLUTION: Erin was driving home from college. During the first day of driving, she averaged 58 mph. On the second day, she drove at an average speed of 74 miles per hour. If her total dri

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Question 846552: Erin was driving home from college. During the first day of driving, she averaged 58 mph. On the second day, she drove at an average speed of 74 miles per hour. If her total driving time for the two days was 13.5 hours and the total distance traveled was 903 miles, what was Erin's driving time for each day?
Answer by richwmiller(17219)   (Show Source): You can put this solution on YOUR website!
58x+74y=903,
x+y=13.5
x=6 y=7.5

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