document.write( "Question 359494: Chris's average speed for a 6 hour trip was 70 mph. For the first 4 hrs, Chris drove at 62 mph. What was his average speed for his last 2 hours of his trip? \n" ); document.write( "
Algebra.Com's Answer #256504 by robertb(5830)\"\" \"About 
You can put this solution on YOUR website!
Chris's average speed for a 6 hour trip was 70 mph. For the first 4 hrs, Chris drove at 62 mph. What was his average speed for his last 2 hours of his trip?\r
\n" ); document.write( "\n" ); document.write( "The total distance traveled was \"70+%2A+6+=+420\"miles. During the 1st four hours, The distance traveled was \"62%2A4+=+248\". Therefore 172 miles was traveled the last 2 hours, and the average speed would be \"172%2F2+=+86\" miles per hour.
\n" ); document.write( "
\n" );