SOLUTION: harry drove for 3 hours on the freeway then decreased his speed by 20 miles per hours, and then drove 4 more hours on a country road. If his total trip was 291 miles then what was

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Question 1014427: harry drove for 3 hours on the freeway then decreased his speed by 20 miles per hours, and then drove 4 more hours on a country road. If his total trip was 291 miles then what was his speed on the freeway?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
harry drove for 3 hours on the freeway then decreased his speed by 20 miles per hours, and drove 4 more hours on a country road. If his total trip was 291 miles then what was his speed on the freeway?
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3x + 4(x-20) = 291
7x - 80 = 291
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7x = 371
x = 53 mph (speed on the freeway)
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Cheers,
Stan H.
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