document.write( "Question 40961This question is from textbook Algebra structure and method
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Algebra.Com's Answer #26381 by fractalier(6550) You can put this solution on YOUR website! Let the rate in the city be r. Thus the rate in the open highway is 2r. \n" ); document.write( "The equation we always use is \n" ); document.write( "Rate * Time = Distance or \n" ); document.write( "RT = D \n" ); document.write( "so we have \n" ); document.write( "r(1) + 2r(4) = 387 \n" ); document.write( "9r = 387 \n" ); document.write( "r = 43 km/hr \n" ); document.write( " |