document.write( "Question 252985: If the average speed of a car is increased from 50 to 60 kph, the time needed to cover a certain distance is reduced by 30 mins. What is the distance involved? \n" ); document.write( "
Algebra.Com's Answer #185190 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! rt=d \n" ); document.write( "50x=60*(x-1/2) \n" ); document.write( "50x=60x-30 \n" ); document.write( "30=10x \n" ); document.write( "3=x=3 hours \n" ); document.write( "50*3=150 km \n" ); document.write( "60*2.5=150 km \n" ); document.write( "150 km distance \n" ); document.write( " \n" ); document.write( " |