document.write( "Question 904551: A bus enters a highway driving 55 mph. A car enters the highway at the same place 1/4 of an hour later and drives 70 mph in the same direction. From the time the car enters the highway, how long will it take the car to pass the bus? \n" ); document.write( "
Algebra.Com's Answer #548776 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! gaining speed 70 -55= 15 mph \n" ); document.write( "headstart 55*0.25 =13.75 miles \n" ); document.write( "time to catch up 13.75/15=0.91666667 hours \n" ); document.write( "time to catch up =55 minutes \n" ); document.write( "algebraic solution \n" ); document.write( "55(t+0.25)=70t \n" ); document.write( "55t+13.75=70t \n" ); document.write( "13.75=70t-55t \n" ); document.write( "13.75=15t \n" ); document.write( "0.91666667=t \n" ); document.write( "distance to meeting 0.91666667*70=64.1666667 miles \n" ); document.write( " \n" ); document.write( " |