document.write( "Question 1185757: Directions: Tell whether or not the following situation illustrates a quadratic equation. Justify your answer by representing the situation in a mathematical sentence.\r
\n" ); document.write( "\n" ); document.write( "A motorcycle driver travels 15 kph faster than a bicycle rider. The motorcycle driver covers 60 km in two hours less than the time it takes the bicycle to travel the same distance. \n" ); document.write( "

Algebra.Com's Answer #816588 by ikleyn(52786) $\"\"$ $\"About$

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document.write( "If the question is to find each speed, then the problem can be reduced to this \"time\" equation\r\n" );
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document.write( "     -  = 2 hours.\r\n" );
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document.write( "In the equation, \"b\" is the speed of the bicycle rider and (b+15) is the speed of the motorcycle driver,\r\n" );
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document.write( "in kilometers per hour.\r\n" );
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document.write( "This equation can be presented as a quadratic equation for unknown variable \"b\" by multiplying both sides \r\n" );
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document.write( "of equation (1)  by b*(b+15).\r\n" );
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\n" ); document.write( "\n" ); document.write( "Just answered.\r
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