document.write( "Question 1131623: A bus and a car leave a town at 10:30 AM and travel in opposite directions. The bus travels at an average speed of 50km/hr and the car travels at the average speed of 55km/hr
\n" );
document.write( "Let t equal the time taken for the journey.\r
\n" );
document.write( "\n" );
document.write( "i) Write an expression in t for the distance travelled by bus \r
\n" );
document.write( "\n" );
document.write( "ii) Write an expression in t for the distance travelled by the car\r
\n" );
document.write( "\n" );
document.write( "iii) write an equation in t to show the time at which the bus and the car are 140km apart\r
\n" );
document.write( "\n" );
document.write( "iv) Solve for T\r
\n" );
document.write( "\n" );
document.write( "v) If the car and the bus travelled in the same direction, at what time would the car be 30km in front of the bus?? \r
\n" );
document.write( "
\n" );
document.write( "\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #748703 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! A bus and a car leave a town at 10:30 AM and travel in opposite directions. \n" ); document.write( " The bus travels at an average speed of 50km/hr and the car travels at the average speed of 55km/hr \n" ); document.write( ": \n" ); document.write( "Let t equal the time taken for the journey. \n" ); document.write( "i) Write an expression in t for the distance travelled by bus \n" ); document.write( "50t \n" ); document.write( "ii) Write an expression in t for the distance travelled by the car \n" ); document.write( "55t \n" ); document.write( "iii) write an equation in t to show the time at which the bus and the car are 140km apart \n" ); document.write( "50t + 55t = 140 \n" ); document.write( "105t = 140 \n" ); document.write( "iv) Solve for T \n" ); document.write( "t = 140/105 \n" ); document.write( "t = 1 \n" ); document.write( "v) If the car and the bus travelled in the same direction, at what time would the car be 30km in front of the bus?? \n" ); document.write( "55t - 50t = 30 \n" ); document.write( "5t = 30 \n" ); document.write( "t = 30/5 \n" ); document.write( "t = 6 hrs after 10:30 which is 4:30 pm \n" ); document.write( " |