document.write( "Question 1171220: A delivery truck follows a regular route that is 270 km. One day the driver begins the route half hour late. In order to finish on time, she drives the truck 6km/hr faster than usual. What is the truck's usual speed \n" ); document.write( "

Algebra.Com's Answer #796145 by ikleyn(52818) $\"\"$ $\"About$

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document.write( "The time equation is\r\n" );
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document.write( "     -  = .\r\n" );
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document.write( "Each term in the left side is the traveled time.\r\n" );
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document.write( "  in the right side represents half an hour time difference.\r\n" );
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document.write( "Reduce to quadratic equation and solve it using quadratic formula or factoring.\r\n" );
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document.write( "ANSWER.  54 km/h  and  60 km/h.\r\n" );
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\n" ); document.write( "\n" ); document.write( "To see many other similar problems solved, look into the lesson\r
\n" ); document.write( "\n" ); document.write( " - Had a car move faster it would arrive sooner\r
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