document.write( "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?
\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #630724 by stanbon(75887)![]() ![]() ![]() 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? \n" ); document.write( "---- \n" ); document.write( "3x + 4(x-20) = 291 \n" ); document.write( "7x - 80 = 291 \n" ); document.write( "---- \n" ); document.write( "7x = 371 \n" ); document.write( "x = 53 mph (speed on the freeway) \n" ); document.write( "---- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "---------\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |