document.write( "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?
\n" ); document.write( "Show your work not just the final answer.\r
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\n" ); document.write( "\n" ); document.write( " Plug-in the records to the equation R = - 0.0433t + 10.49 to determine the values for
\n" ); document.write( "Since the year 1998 corresponds to we can find out the year corresponding to t = 0. \r
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Algebra.Com's Answer #276721 by stanbon(75887)\"\" \"About 
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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?
\n" ); document.write( "Show your work not just the final answer.
\n" ); document.write( "Solve for \"t\":
\n" ); document.write( "10.15 = -0.0433t + 10.49
\n" ); document.write( "-0.0433t = -0.35
\n" ); document.write( "t = 8.083 (8.083 yrs. after 1988 is 1997)
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\n" ); document.write( "10.35 = -0.0433t + 10.49
\n" ); document.write( "-0.0433t = -14
\n" ); document.write( "t = 3.233 (3.233 yrs. after 1988 is 1991
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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