document.write( "Question 754537: During the first part of a trip, a canoeist travels 22 miles at a certain speed. The canoeist travels 6 miles on the second part of the trip at a speed 5 mph slower. The total time for the trip is 3 hours. What was the speed on each part of the trip? \n" ); document.write( "
Algebra.Com's Answer #459158 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! During the first part of a trip, a canoeist travels 22 miles at a certain speed. The canoeist travels 6 miles on the second part of the trip at a speed 5 mph slower. The total time for the trip is 3 hours. What was the speed on each part of the trip? \n" ); document.write( "*** \n" ); document.write( "let x=speed of 1st part of the trip \n" ); document.write( "x-5=speed of 2nd part of the trip \n" ); document.write( "travel time=distance/speed \n" ); document.write( ".. \n" ); document.write( " \n" ); document.write( "LCD:x(x-5) \n" ); document.write( " \n" ); document.write( "22x-110+6x=3x^2-15x \n" ); document.write( "3x^2-43x+110=0 \n" ); document.write( "factor: \n" ); document.write( "(3x-10)(x-11)=0 \n" ); document.write( "x=10/3 (reject, not reasonable) \n" ); document.write( "or \n" ); document.write( "x=11 \n" ); document.write( "x-5=6 \n" ); document.write( "speed of 1st part of the trip=11 mph \n" ); document.write( "speed of 2nd part of the trip=6 mph \n" ); document.write( " \n" ); document.write( " |