document.write( "Question 1050217: The Cummings are moving across the country. Mr. Cumming leaves 4 hours before Mrs. Cumming. If he averages 45 mph and she averages 90 mph, how long will it take Mrs. Cumming to overtake Mr. Cumming? \n" ); document.write( "

Algebra.Com's Answer #665787 by josgarithmetic(39620) $\"\"$ $\"About$

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The two travelers catchup problem\r
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document.write( "h=4 hour\r\n" );
document.write( "r=45 mph\r\n" );
document.write( "R=90 mph\r\n" );
document.write( "t, unknown travel time for catchup for traveler at R\r\n" );
document.write( "d, unknown distance upon catchup\r\n" );
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\n" ); document.write( "BASIC Constant Travel Rate Formula: $\"D%2FT=R\"$ \r
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document.write( "                  SPEED        TIME       DISTANCE\r\n" );
document.write( "Mr. Cumming        r           t+h        d\r\n" );
document.write( "Mrs. Cumming       R           t          d\r\n" );
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\n" ); document.write( "Write the equations for the system, and solve for t and d. \n" ); document.write( "

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