document.write( "Question 1125034: A van averages 9 miles per hour faster than a car. If the van travels 100 miles in the same time it takes the car to travel 70 miles, then what is the speed of each? \n" ); document.write( "
Algebra.Com's Answer #741369 by josgarithmetic(39618)![]() ![]() ![]() You can put this solution on YOUR website! ---------------------------------------------------- \n" ); document.write( "A van averages 9 miles per hour faster than a car. If the van travels 100 miles in the same time it takes the car to travel 70 miles, then what is the speed of each? \n" ); document.write( "---------------------------------------------------\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "--------------------------------------------------- \n" ); document.write( "A van averages k miles per hour faster than a car. If the van travels D miles in the same time it takes the car to travel d miles, then what is the speed of each? \n" ); document.write( "----------------------------------------------------\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "(Note very carefully, \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \r\n" ); document.write( "Unknowns: x and r\r\n" ); document.write( "\r\n" ); document.write( " SPEED TIME DISTANCE\r\n" ); document.write( "VAN r+k x=D/(r+k) D\r\n" ); document.write( "CAR r x=d/r d\r\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "- \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( " |