document.write( "Question 165417: Juan drives to work. Because of traffic conditions, he averages 22 miles per hour. He returns home averaging 32 miles per hour. The total travel time is 2 1/4 hours.\r
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document.write( "Write an equation to find the value for the time it takes Juan to travel to work?\r
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Algebra.Com's Answer #121915 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! 22x=32(2.25-x) \n" ); document.write( "22x=72-32x \n" ); document.write( "22x+32x=72 \n" ); document.write( "54x=72 \n" ); document.write( "x=72/54 \n" ); document.write( "x=1.333 is the travel time for the trip to work @ 22 mph. \n" ); document.write( "2.25-1.333=.917 hours for the return trip @ 32 mph. \n" ); document.write( "Proof: \n" ); document.write( "22*1.333=32*.917 \n" ); document.write( "29.33~29.34 \n" ); document.write( " |