document.write( "Question 345964: Nicholas Thompson begins a long-distance walk at a rate of 4 mph. Forty-five minutes after he leaves, his wife, Kristin, realizes that Nicholas has forgotten his wallet. Kristin gets on her bicycle and begins riding at a rate of 24 mph along the same path that Nicholas took.\r
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document.write( "Calculate how long it will take Kristin to catch Nicholas.
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document.write( "Calculate how far from their home Kristin will catch Nicholas. \n" );
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Algebra.Com's Answer #247377 by mananth(16946)![]() ![]() You can put this solution on YOUR website! Nicholas's speed = 4mph \n" ); document.write( "distance = speed * time \n" ); document.write( "in 3/4 hour he travels 4*3/4 miles = 3 miles \n" ); document.write( "... \n" ); document.write( "wife's speed = 24 mph. \n" ); document.write( "every hour she catches up 24-4 = 20 miles. \n" ); document.write( "to catch up 3 miles she will take 3/20 hours \n" ); document.write( "=3/20 * 60 minutes \n" ); document.write( "= 9 minutes \n" ); document.write( " |