document.write( "Question 415413: Truck is driving 60mph a car leaves 7 minutes later going 72mph how long before the car catches the truck \n" ); document.write( "
Algebra.Com's Answer #291248 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! 60 mi/hr = 1 mile/minute \n" ); document.write( "The truck is 7 miles ahead (1*7) \n" ); document.write( "The car \"gains on\" the truck at 12 mph (72 - 60) \n" ); document.write( "It'll take 7/12 hours = 35 minutes \n" ); document.write( "---------------------------------- \n" ); document.write( "PS \"gains on\" is a common term, but it's better to consider a different frame of reference. \n" ); document.write( "The speed of the car relative to the truck is 12 mi/hr is a better perspective. \n" ); document.write( " |