SOLUTION: The formula R = -0.075+3.85 can be used to predict the world record in the 1500 meter run, t years after 1930. Determine an inequality that identifies the years in which the world

Algebra ->  Inequalities -> SOLUTION: The formula R = -0.075+3.85 can be used to predict the world record in the 1500 meter run, t years after 1930. Determine an inequality that identifies the years in which the world       Log On


   



Question 176752: The formula R = -0.075+3.85 can be used to predict the world record in the 1500 meter run, t years after 1930. Determine an inequality that identifies the years in which the world record will be less than 3.1 minutes.
Solve for the t

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
The formula R = -0.075t+3.85 can be used to predict the world record in the 1500 meter run, t years after 1930. Determine an inequality that identifies the years in which the world record will be less than 3.1 minutes.
Solve for the t
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-0.075t+3.85 < 3.1
-0.075t + 0.75 < 0
0.075t > 0.75
t > 10
Inequality: year > 1940
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Cheers,
Stan H.