SOLUTION: Tara drove 3 hours on the freeway, then decreased her speed by 20 miles per hour and drove 4 more hours on a country road. If her total trip was 375 miles, what was her speed on

SOLUTION: Tara drove 3 hours on the freeway, then decreased her speed by 20 miles per hour and drove 4 more hours on a country road. If her total trip was 375 miles, what was her speed on

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Question 438953:
Tara drove 3 hours on the freeway, then decreased her speed by 20 miles per hour and drove 4 more hours on a country road. If her total trip was 375 miles, what was her speed on the freeway ?
Answer by jorel1380(3719) (Show Source): You can put this solution on YOUR website!
3x+4(x-20)=375
3x+4x-80=375
7x=455
x=65
Her speed on the freeway was 65. Her speed on the country road was 45.
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