document.write( "Question 912620: Start from 110 feet away, a person on a bicycle rides toward a checkpoint and then passes it. The rider is traveling at a constant of 30m feet per second. The distance between the bicycle and the checkpoint is given by the equation d=(110-30t). At what times is the bike 40 feet away from the checkpoint? \n" ); document.write( "
Algebra.Com's Answer #553952 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Convert feet to meters \n" ); document.write( "1 foot = 0.3048 meters\r \n" ); document.write( "\n" ); document.write( "d = 110*0.3048 - 30t \n" ); document.write( "|110*0.3048 - 30t| = 40 \n" ); document.write( "Solve for t (2 times, approaching & departing) \n" ); document.write( " |