document.write( "Question 855399: You and your friend leave your house at the same time. You drive due east at a speed of 35 miles per hour, and your friend travels due south at a speed of 25 miles per hour. After 30 minutes, how fast is the distance between your cars changing? \n" ); document.write( "
Algebra.Com's Answer #515329 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
The relative speed is the hypotenuse of the right triangle, not time dependent if you leave at the same time.
\n" ); document.write( "-----
\n" ); document.write( "The legs are 25 & 35.
\n" ); document.write( "
\n" );