SOLUTION: doctor Wei allowed 2 hours to reach an appointment 100 miles away. after driving 60 miles, she realized thta her speed would have to be increased by 15 mph for the remainder of the
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Question 1031733: doctor Wei allowed 2 hours to reach an appointment 100 miles away. after driving 60 miles, she realized thta her speed would have to be increased by 15 mph for the remainder of the trip. what was her speed for the 1st 60 miles?
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
60(x+15)+40x = 2x(x+15)
2x^2 -70x-900=0}}}
Solve for x
x= 45 mph
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