math

250 seconds if she maintains 2 yds per second

walkera:

:? Glenda swam the 200 yd freestyle in 100 seconds. if she maintains the same rate in the 500 yd freestyle,how long will it take her to finish the race?

100sec/200yds = x sec/500 yards

mult both sides by 500 yards and you get

100sec/200yds * 500yards

The yards cancel out

100/200 * 500secs

1/2*500 sec

250 seconds