Word Problem for Algebra- Race Time. The equation R=0.028t+20.8 can be used to predict the world record in the 200mdash, where R is the record in seconds and t is the number of years since 1920. In what year will the record be 18.0 seconds?

Word Problem for Algebra- Race Time. The equation R=0.028t+20.8 can be used to predict the world record in the 200mdash, where R is the record in seconds and t is the number of years since 1920. In what year will the record be 18.0 seconds?