document.write( "Question 1175428: Jim began a 121-mile bicycle trip to build up stamina for a triathlete competition. Unfortunately, his bicycle chain broke, so he finished the trip walking. The whole trip took 6 hours. If Jim walks at a rate of 5 miles per hour and rides at 31 miles per hour, find the amount of time he spent on the bicycle. \n" ); document.write( "

Algebra.Com's Answer #801038 by ikleyn(52777) $\"\"$ $\"About$

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document.write( "Let t be the time bicycling.\r\n" );
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document.write( "Then the time walking was (6-t).\r\n" );
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document.write( "Now you write the total distance equation\r\n" );
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document.write( "    31*t + 5*(6-t) = 121\r\n" );
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document.write( "Simplify and solve\r\n" );
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document.write( "    31t + 30 - 5t = 121\r\n" );
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document.write( "       26t        = 121 - 30 = 91\r\n" );
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document.write( "         t                   =  = 3.5.\r\n" );
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document.write( "ANSWER.  3.5 hours bikyng.\r\n" );
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