document.write( "Question 438953:
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document.write( "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 ? \n" );
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Algebra.Com's Answer #303426 by jorel1380(3719)![]() ![]() You can put this solution on YOUR website! 3x+4(x-20)=375 \n" ); document.write( "3x+4x-80=375 \n" ); document.write( "7x=455 \n" ); document.write( "x=65 \n" ); document.write( "Her speed on the freeway was 65. Her speed on the country road was 45. \n" ); document.write( " |