document.write( "Question 619280: During the first part of a trip, a canoeist travels 35 miles at a certain speed. The canoeist travels 14 miles on the second part or the trip at a speed 5 mph slower. The total time for the trip is 2 hours. What is the speed on each part of the trip?\r
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Algebra.Com's Answer #389515 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! During the first part of a trip, a canoeist travels 35 miles at a certain speed. The canoeist travels 14 miles on the second part or the trip at a speed 5 mph slower. The total time for the trip is 2 hours. What is the speed on each part of the trip? \n" ); document.write( "---- \n" ); document.write( "1st leg DATA: \n" ); document.write( "distance = 35 miles ; rate = x mph ; time = d/r = 25/x hrs \n" ); document.write( "-------------------------- \n" ); document.write( "2nd leg DATA: \n" ); document.write( "distance = 14 miles ; rate = x-5 mph ; time = d/r = 14/(x-5) hrs \n" ); document.write( "------ \n" ); document.write( "Equation: \n" ); document.write( "time + time = 2 hrs \n" ); document.write( "25/x + 14/(x-5) = 2 hrs \n" ); document.write( "25(x-5) + 14x = 2x(x-5) \n" ); document.write( "25x - 125 + 14x = 2x^2 - 10x \n" ); document.write( "2x^2 -49x + 125 = 0 \n" ); document.write( "x = 21.607 mph (rate on 1st leg) \n" ); document.write( "x-5 = 16.607 mph (rate on 2nd leg) \n" ); document.write( "===================================== \n" ); document.write( "cheers, \n" ); document.write( "Stan H. \n" ); document.write( "============= \n" ); document.write( " \n" ); document.write( " |