document.write( "Question 1151746: After traveling for 40 minutes, Mr. Koole had to slow to 2/3 his original speed for the rest of the trip due to heavy traffic. The total trip of 84 miles took 2 hours. Find his original speed. \n" ); document.write( "

Algebra.Com's Answer #773603 by ikleyn(52852) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "After traveling for 40 minutes, Mr. Koole had to slow to 2/3 his original speed fFor the rest of the trip due to heavy traffic.
\n" ); document.write( "The total trip of 84 miles took 2 hours. Find his original speed.
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\n" ); document.write( "\n" ); document.write( "            The setup and the setup equation in the post by @josgarithmetic are INCORRECT.\r
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\n" ); document.write( "\n" ); document.write( "            So, I came to provide a correct solution.\r
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\n" ); document.write( "\n" ); document.write( "            For your safety, simply ignore the post by @josgarithmetic.\r
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document.write( "SPEED          TIME hours        DISTANCE\r\n" );
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document.write( "r               2/3             (2/3)r            \r\n" );
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document.write( "(2/3)r          2-2/3=4/3       (4/3)(2/3)r = (8/9)r\r\n" );
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document.write( "TOTALS           2                84\r\n" );
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document.write( "Equation\r\n" );
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document.write( " +  = \r\n" );
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document.write( "Multiply by 9 both sides\r\n" );
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document.write( "6r + 8r = 9*84\r\n" );
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document.write( "14r     = 9*84\r\n" );
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document.write( "  r     =  = 9*6 = 54.\r\n" );
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document.write( "ANSWER.  The original speed was  54 miles per hour.\r\n" );
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\n" ); document.write( "\n" ); document.write( "Solved.\r
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