document.write( "Question 1102248: Hannah Rae walked 'k' miles to town in only 'h' hours, but still arrived one hour early. What should her speed have been to have arrived on time if the town were 3 miles further away? \n" ); document.write( "

Algebra.Com's Answer #716906 by ikleyn(52946) $\"\"$ $\"About$

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document.write( "Let \"u\" be the speed under the question (the speed to get the town on time).\r\n" );
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document.write( "Then the condition says \r\n" );
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document.write( " -  = 1,    (it is your time equation,\r\n" );
document.write( "                 which is a literal translation of the condition).\r\n" );
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document.write( "From the equation, after multiplying both sides by (u*k), you have\r\n" );
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document.write( "3k - 3u = uk,\r\n" );
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document.write( "3k = uk + 3u  ====>  u*(k+3) = 3k  ====>  u =  miles per hour.\r\n" );
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document.write( "Answer.  The speed under the question (the speed to get the town on time) is   miles per hour.\r\n" );
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\n" ); document.write( "You may find many similar solved problems of this kind in the lessons\r
\n" ); document.write( "\n" ); document.write( " - Had a car move faster it would arrive sooner\r
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