Answer:
In 2010 the time will be 44.8 seconds.
Explanation:
Given that the Olympic time for men's 400-m hurdles has been decreasing by about 0.09 seconds per year since 1930, when the record was 52 seconds, to predict what the time will be in 2010 the following calculation must be performed:
52 - ((2010 - 1930) x 0.09) = X
52 - (80 x 0.09) = X
52 - 7.2 = X
44.8 = X
Thus, in 2010 the time will be 44.8 seconds.