document.write( "Question 208547: Two cars leave Binghamton at the same time headed in the same direction. One travels at an average speed of 65 mph and the other at 40 mph. How long will it take for the cars tobe 90 miles apart? \n" ); document.write( "
Algebra.Com's Answer #157789 by rfer(16322)\"\" \"About 
You can put this solution on YOUR website!
They are moving apart at 25 mph
\n" ); document.write( "D=rt
\n" ); document.write( "t=D/r
\n" ); document.write( "90/25=3.6 hrs
\n" ); document.write( "
\n" );