document.write( "Question 1146609: A truck enters a highway driving 60 mph. A car enters the highway at the same place 9 minutes later and drives 66 mph in the same direction. From the time the car enters the highway, how long will it take the car to pass the truck? \n" ); document.write( "
Algebra.Com's Answer #767910 by greenestamps(13203)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "60 miles per hour is 1 mile per minute. \n" ); document.write( "In the 9 minutes between the times the truck and car enter the highway, the truck, at 60 mph, travels 9 miles. \n" ); document.write( "The rate at which the car overtakes the truck is 66-60 = 6mph. \n" ); document.write( "The time required to make up 9 miles at 6mph is 9/6 = 1.5 hours. \n" ); document.write( "ANSWER: 1.5 hours \n" ); document.write( " |