document.write( "Question 57514: Cindy runs 8 meters/second for half of a 400 meter race. She gets a leg cramp halfway through and runs at a slower speed. Her average speed is 6 meters/second. How fast did she run after getting the cramp? \n" ); document.write( "
Algebra.Com's Answer #39256 by stanbon(75887) ![]() You can put this solution on YOUR website! Cindy runs 8 meters/second for half of a 400 meter race. She gets a leg cramp halfway through and runs at a slower speed. Her average speed is 6 meters/second. How fast did she run after getting the cramp? \n" ); document.write( "--------- \n" ); document.write( "Let her slower speed be \"x meters/second\". \n" ); document.write( "Then (8+x)/2=6 \n" ); document.write( "8+x=12 \n" ); document.write( "x=4 meters per second. \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |