Jenny can run 100 yards in 25 seconds . so, since there are 3 feet in each yard, we can convert 100 yards into feet by multiplying this number by 3:
300 feet in 25 seconds
which gives us the following rate:
300 feet/ 25 sec = 12 ft/sec That is 12 feet per second.
Jenny could run 12 feet in one second.
