document.write( "Question 539272: In a race, if a dog going 37 mph gets a headstart of 12 yards, how long will it take a dog going 38 mph to catch up? \n" ); document.write( "
Algebra.Com's Answer #353378 by Alan3354(69443) You can put this solution on YOUR website! In a race, if a dog going 37 mph gets a headstart of 12 yards, how long will it take a dog going 38 mph to catch up? \n" ); document.write( "----------- \n" ); document.write( "The difference in speed is 1 mi/hr = 22/15 ft/sec \n" ); document.write( "12 yds = 36 ft \n" ); document.write( "--------- \n" ); document.write( "d = r*t \n" ); document.write( "t = d/r = 36/(22/15) = 270/11 seconds \n" ); document.write( "~ 24.5 seconds \n" ); document.write( "----------------- \n" ); document.write( "Note that the time would be the same if the speeds are both >0 and differ by 1 mi/hr. \n" ); document.write( " |