SOLUTION: Katherine drove 230 miles. She drove 40mph for the first 2 hours and 50mhp for the rest of her drive. How long did she drive at 50mhp?

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Question 229383: Katherine drove 230 miles. She drove 40mph for the first 2 hours and 50mhp for the rest of her drive. How long did she drive at 50mhp?
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
230-80=150/50=3 hrs