document.write( "Question 1042034: Harry drove for 6 hours on the freeway then decreased his speed by 20 miles per hour and drove for five more hours on a country road if his total trip was 560 miles then what was his speed on the freeway \n" ); document.write( "
Algebra.Com's Answer #656933 by rothauserc(4718)![]() ![]() You can put this solution on YOUR website! let r be Harry's rate on the freeway, then his other rate is r-20 \n" ); document.write( ": \n" ); document.write( "note rate * time = distance \n" ); document.write( ": \n" ); document.write( "6r + 5(r-20) = 560 \n" ); document.write( ": \n" ); document.write( "6r + 5r -100 = 560 \n" ); document.write( ": \n" ); document.write( "11r = 660 \n" ); document.write( ": \n" ); document.write( "r = 60 \n" ); document.write( ": \n" ); document.write( "************************************* \n" ); document.write( "Harry's rate on the highway is 60 mph \n" ); document.write( "************************************* \n" ); document.write( ": \n" ); document.write( "note our units are all in miles and hours so the rate is mph which is miles per hour \n" ); document.write( ": \n" ); document.write( " \n" ); document.write( " |