document.write( "Question 938406: A motorist does the first part of the journey at an average speed of 54 km/h. He then increases his speed to 60 km/h for the rest of the journey. If he travels 225 km in 4 hours, what is the distance traveled for the first part of his journey? \n" ); document.write( "
Algebra.Com's Answer #571668 by ewatrrr(24785)![]() ![]() You can put this solution on YOUR website! x the distance for the first part of his journey \n" ); document.write( ".. \n" ); document.write( " \n" ); document.write( "10x + 9(224-x) = 2160 \n" ); document.write( "x = 144mi, the distance for the first part of his journey \n" ); document.write( " |