SOLUTION: In 1988, Florence Griffith Joyner set a record of the 10.49 sec in the women’s 100-m dash. The equation can be used to estimate the world record in the women’s 100-m dash year
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Question 390319: In 1988, Florence Griffith Joyner set a record of the 10.49 sec in the women’s 100-m dash. The equation can be used to estimate the world record in the women’s 100-m dash years after 1988. For what years was the record between 10.15 and 10.35 sec?
Show your work not just the final answer.
Plug-in the records to the equation R = - 0.0433t + 10.49 to determine the values for
Since the year 1998 corresponds to we can find out the year corresponding to t = 0.
You can put this solution on YOUR website! In 1988, Florence Griffith Joyner set a record of the 10.49 sec in the women’s 100-m dash. The equation can be used to estimate the world record in the women’s 100-m dash years after 1988. For what years was the record between 10.15 and 10.35 sec?
Show your work not just the final answer.
Solve for "t":
10.15 = -0.0433t + 10.49
-0.0433t = -0.35
t = 8.083 (8.083 yrs. after 1988 is 1997)
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10.35 = -0.0433t + 10.49
-0.0433t = -14
t = 3.233 (3.233 yrs. after 1988 is 1991
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Cheers,
Stan H.
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